[Implemented] Auto !siren- when pulling someone over

[◄Chuck►]

Well, a stopped police car doesn't mean the entire thing is over, both suspect and cop can still suddenly pull off and the cop has to make sure his siren is working then.
However, there once has been the idea of a "traffic stop" signal to clearly indicate what's going on. Might be worth looking into that. The original idea came from Elmo iirc. It may be a bit tricky though, when people start interfering with their own buttons.

In the meantime, I appeal to everyone only to use the !hazard strictly by the book.
Everyone using it wrongly only helps to devalue it and make people ignore it sooner than later.

"The hazard sign must only be used under extremely dangerous circumstances where approaching cars are most likely to crash".