When cops pull you over they do a 'attitude test' this is what there trained to do. If you dont show respect, rude, smartass, etc.. your gonna get the worst outcome like a defect, search or whatever.
But if your unlucky and get a asshat cop then theres nothing you can do, just be respectful.. who cares how much you hate them, if 5 mins of playing nice and doing what they say means no defect then its worth it
Just my advice