Seriously, are you an adult? You don't have to be the driver that was pulled over to file a complaint. If you are a witness to police misbehavior you can file a complaint. In fact I would argue that it is your civic duty to due so. There are always a few bad apples in any group of people, but to call the police "the worst criminal on the street" is over the top.
As a teenager my friends and I were pulled over a few times when it wasn't warranted and the local yokels did pull some shit that probably wouldn't hold up in court. We were too intimidated at that young age to question their actions. I wouldn't stand for their treatment now and would protest and follow up with a complaint it they continued. But of course they are much less likely to harrass a white middle-aged professional then they are teens or near teens. Of course I deserved to be pulled over more often in my teens and twenties them I do now that I'm in my 40's!