I'm living in Germany, but if your red caps act like ours, they are sensitive if you mention some targets of surveillance:
- using two parking stalls with one car
- ignore red lights as a pedestrian
- parking on the sidewalk (illegal in Germany)
- drink and drive
- parking in the bike lane
- shouting after hours in the night
- and any form of domestic violence even the slightest form of aggressive talking
I don't know the situation in the US in detail, but in Germany those people are known for breaking rules often, behave like they own the public space, other people, bullying those lower on the social ladder and other typical supremacist behavior.