Every Person has rights! Even Immigrants. So remember them.

If you're stopped by ICE or Police:

Stay calm and do not resist or obstruct the agents or officers.
Do not lie or give false documents.
Prepare yourself and your family in case you are arrested. Memorize the phone numbers of your family and your lawyer. Make emergency plans if you have children or take medication

You have the right to remain silent. If you wish to exercise that right, say so out loud. (In some states, you may be required to provide your name if asked to identify yourself.)

You do not have to consent to a search of yourself or your belongings, but police may pat down your clothing if they suspect a weapon.

If you are arrested by police, you have the right to a government-appointed lawyer.

If you are detained by ICE, you have the right to consult with a lawyer, but the government is not required to provide one for you. You can ask for a list of free or low-cost alternatives.

You do not have to answer questions about where you were born, whether you are a U.S. citizen, or how you entered the country. (Separate rules apply at international borders and airports, and for individuals on certain nonimmigrant visas, including tourists and business travelers.)

What to do if you are arrested or detained

Say you wish to remain silent and ask for a lawyer immediately. Don't give any explanations or excuses. Don't say anything, sign anything, or make any decisions without a lawyer.

If you have been arrested by police, you have the right to make a local phone call. The police cannot listen if you call a lawyer.

If you have been detained by ICE, you have the right to contact your consulate or have an officer inform the consulate of your detention.

Remember your immigration number ("A" number) and give it to your family. It will help family members locate you.

Keep a copy of your immigration documents with someone you trust.

If you are a non-citizen: Ask your lawyer about the effect of a criminal conviction or plea on your immigration status. Don't discuss your immigration status with anyone but your lawyer. While you are in jail, an immigration agent may visit you. Do not answer questions or sign anything before talking to a lawyer. Read all papers fully. If you do not understand or cannot read the papers, tell the officer you need an interpreter.

If you believe your rights were violated

Write down everything you remember, including officers' badges and patrol car numbers, which agency the officers were from, and any other details. Get contact information for witnesses.
If you're injured, seek medical attention immediately and take photographs of your injuries.
File a written complaint with the agency's internal affairs division or civilian complaint board. In most cases, you can file a complaint anonymously if you wish.
Additional resources

https://www.aclu.org/know-your-rights/immigrants-rights#ive-been-stopped-by-police-or-ice
( I've placed this link on my MB as well )

All persons in the United States have constitutional protections, including the right to remain silent when questioned or arrested by immigration officers. Being stopped by immigration officers or other law enforcement can be frightening, but it's important to stay calm. During any encounter with law enforcement, it's important to do the following:

Stay calm and don't run, argue, resist, or fight the officer, even if you believe your rights are being violated or you are being treated unfairly. Keep your hands where police can see them, and tell them if you need to reach into a glove compartment or for a wallet to show your papers.

Don't lie about your status or provide false documents.
If you are pulled over in a traffic stop: Ask if the officer is from the police department or immigration.

Immigration officers often identify themselves as "police," but they are not police. Ask if they are from Immigration and Customs Enforcement (ICE) or Customs and Border Protection (CBP). If they are immigration officers, follow these guidelines about what information to provide.

If you are a U.S. citizen or have lawful immigration status: Show your passport, legal permanent resident card, work permit, or other documentation of your status. If you are over the age of 18, you should carry your papers with you at all times.

If you are undocumented: You have the right to remain silent and do not have to discuss your immigration or citizenship status with the police, immigration agents, or other officials. Anything you tell an officer can later be used against you in immigration court.

If an officer knocks on your door: Do not open the door. Teach your children not to open the door. Officers must have a warrant signed by a judge to enter your home. ICE "warrants" are not signed by judges; they are ICE forms signed by ICE officers and they do not grant authority to enter a home without consent of the occupant(s).

If you are outdoors and think you see immigration officers nearby:
Move to a safe indoor space
If you are a U.S. citizen and feel safe to do so, record the activity with your phone or write down any relevant information about what you witness—ALWAYS being careful to not interfere or otherwise obstruct the operation

DO NOT:
Post unverified information on social media
Interfere with the investigation or otherwise put yourself in harm's way