I know well some of those areas he goes to from Oakland to Hayward. I can tell you ,I wouldn't stick my head in anybody's car window no matter how much they smile. "HAHAHA (like Deniro) I ain't behaving bad"- BOOM!..and then something bad happens. He cant also always have a cop around as he lugs that camera stuff around.
If he's not carrying something registered,then if I was Stanley Roberts I would carry a telescoping nightstick- with spikes on the end.
I myself have heard more then once "shut me up" and "gun". Its part of not being part of the problem when you live in certain areas. This area of mine is certain.