I should have been clearer. The way the bribes work is you have a friend who works on the force find out what the ticketing officer likes. Then you give the GC to the friend who gives it to the ticketing officer. People who grew up in the city invariably know at least one or two people on the force.
Nobody says “hey here’s the bribe”, they act like they’re mistakenly handing over money or whatever. This is basic bribery etiquette.