That's the problem....
You DON'T go looking for evidence. You DON'T strap on your gun.
Sure, anybody might have loud neighbors and cops who don't care, but that's the end of the "it could happen to any of us" because after that, everything he did was wrong. He escalated, antagonized, failed to leave, initiated...
What you do is file a formal complaint against the police department. You talk to a lawyer about a "cease and desist" order, or whatever it would be called. You take smart, legal actions not stupid, antagonistic actions.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.