"You just destroyed my window, officer"

[Black]

I'm not convinced there's a profit motive or that snatching undocumented immigrants off the street is a significant motive here. Where I live they set up operations like this to effectively cordon off a gang territory when shootings/killings have been going back and forth for a few days. Usually they call them "seat belt checks."
Legality aside, I appreciate any activist effort to try to preserve our constitutional rights.