As much as cops annoy me, i gotta say that there are some real RS-holes for cops... Give you a hard time, ask just plain stupid questions:
i was once warming my car up outside my work, which is a silver service restaurant. I'm wearing my full uniform, gay bow-tie and white apron. Cop says "where you been tonight'?
-and are just plain rude.
BUT understand that they have a job to do too, and there are some (few?!) who DO see that the car laws suck and are lenient about fines etc etc... when you come across them it does make you feel better about all the others you've had to deal with.
So, i'f they're RSholes, ignore them just i think some are OK.
As for parking "officers"... scum of the earth.
my 2 cents.