I'm sorry to hear about your bad experiences with the cops Chris.
If we switch this thread around to giving advice-
I would say this
Always answer questions and try your best to cooperate- failing to do so just gives the officer reason to suspect you are hiding something. It is nothing more than antagonizing the cop and bringing out the worst in him.
Edit**** this was intended to refer to while in your vehicle- no, I am not saying you should always consent to any search, just if you don't want to be delayed and have your car scratched up- besides, I thought driving was a privilege, not a right??******
Always Consent to a search** see edit**. If you truly are innocent, then you won't have anything to worry about. If you tell them they can't search your car, they will see that as guilt and likely hold you until their dog can scratch up your car, and then still search your car anyways, only this time, thy will think you are guilty and REALLY tear stuff up looking for what you're hiding.
I have consented to many searches, therefore, I've never had a dog scratch my car, and it has never been more than the cop emptying my glove box and center console (never been more than a 5 minute ordeal) and most of the time I needed to clean those out anyway! Haha.
Long story short- by refusing to cooperate, the cops automatically think you are hiding something, and then they REALLY want to find something.
My ride- 2001 power wheel, 11" plastic tires, upgraded battery, boat sides, custom bumpers, tow hooks, new paint.