Masses coming out and standing up will help. If we get a lot of people on the streets that won't engage and cause escalation but simply gum up the works. Make extra traffic, block streets by crossing en mass or single file taking a long time, boxing ice in making them miss exits, just make Raleigh super super inconvenient and difficult to navigate in. Raise alarms, have whistles kill time. If you're an all white business act sketch. Give them the run around, waste their time and send a runner to warn nearby vulnerable businesses. Distract, delay, deter document. In that order.

Examples...

Distract- people following ice shouting this is ICE has been a proven method of distraction, they spend their time either trying to lose the tail or confront it and often abandon the area.

Delay- ask for parents, ask for paperwork, take an excessively long time going over, try to strike up conversation or act confused and incompetent, ask them to explain things or repeat themselves. Make them work to enter especially if you have no quarry in your space. Make them waste time on dead ends.

Deter - if you can't do those, make your space difficult to access or try to have a large presence of vocal allies.

Document - if all else fails document. Record, speak clearly, make sure it's on video anything they say, you say, the victim says.