This thread is for random things that you know about the game! I'll start. The modern Firewood police skin (the one on the sunburst) is based off of the Pittsburgh police skin. Being a Pittsburgher, I see the quite a bit. Look: I'm interested to see what you guys know about the game!
On the topic of police skins, the Belasco Police skin is a direct copy of the District of Columbia Metropolitan Police livery. And the police H-Series is a direct copy of the Philadelphia Police Department's livery, even down to the "strike force" text on the fender.