I remember stopping a motorist once and he handed me his driver's license in a special two-sided card wallet that opened like a bi-fold. On one side was his license and sitting on top of it was a neatly folded $50 dollar bill. I removed his license and returned his money and little wallet. I told him the money was probably an oversight but it could easily be mistaken as a bribe. He told me he recently moved to SF from NYC and that's how things work there. That and a few other professional experiences left a sour taste in my mouth for NYPD. But as I looked around St Paul's Cathedral during a funeral for a friend of mine who was murdered in the line of duty I saw six NYC cops (and believe it or not two from London) it help me put some baggage behind me.
And by the way, I was once, actually more than once, offered oral by a woman to avoid a simple traffic offense. And she wasn't a street worker.