It's definitely a YMMV kind of thing.

I'm not going to go on some kind of "all cops are bastards" bend here, cause that's not the case and this isn't the forum for it, but I've had more bad experiences with the police than good ones.

None of them resulted in an arrest or charges filed (this is excluding moving violations because death, taxes and speeding tickets; I was a 23 year old driving a Mustang lol) since none of the interactions involved me doing anything illegal. After a few experiences like that you learn to keep an eye on a police officer when you see one, but there's no urge to make your presence overtly known to them either.