cops have always been cool with me in philly. I routinely run red lights (at times ride between two stopped cop cars and blow through a red light).

When I got "the door prize" and was being yelled at by the guy who opened his door into me, a bike cop came and yelled in the guys face for me.... then gave him a ticket for not looking and opening his door into me and let me ride off.

so far, nothing but good experiences with the police in Philly.