they're not
always just doing their job. they usually have quotas to fill, more money to make for the city government.
when i lived in new york...a school bus of all vehicles ran my tiny little honda off the road into a snow bank. (the bus just kept going, how nice!) i walked two blocks back to my house to call a tow, but by the time i walked two blocks back to the car...it had already been towed by the city police. it took me a week and $250 to get my car back, and when i finally got it...there were two parking tickets under my wipers! one for "parking illegally" and one for "parking in a no parking zone" (aren't those two the uh, same?) both tickets were expired, thus i had to pay double. cost me another $75.
in pittsburgh, i once got a parking ticket for "not parking in a parking space" even though i was in a space AND i paid the meter for the space. if its not a parking space, how could there be a parking meter?????
again, in pittsburgh...i got a ticket for an "expired parking meter" even though the meter was paid. the meter maid pre-wrote my ticket for the time my meter was to expire, hoping i wouldn't make it back to my car before that time. i made it back 10 minutes before the ticket was "written".

parking authority