I know several LEO and they say they make a determination on whether the person is going to get a ticket or not before they even see who is in the vehicle, with a couple exceptions. They say that if you are rude or a blatant attitude you may just talk yourself into a ticket. Also, for any female that cries, she will automatically get a ticket. The officers I know will pull cars over for going up to a certain speed over the limit and just write warnings or give a warning. Once they reach a certain limit, it doesn't matter who you are, you get a ticket. Usually that limit is set at 15mph over the speed limit