This is the result of giving cops too much power.
When I was younger...the cops couldn't do half the shit they can now. They couldn't search your car, they couldn't search your wife's purse, they actually treated people with respect, and I even argued with many of them back in the 1980's.
I sure wouldn't argue with them now.
You even so much as ask a question and they will tell you to shut up while they treat you like a dog. You make one wrong move and they might "feel threatened" and empty the damn clip in you.
I've said it before and I'll say it again...the "War On Drugs" and "Terrorism" has led to the cops getting too much power in the name of "protecting" us.
You give any human being the power to do anything he wants to you...and you are powerless to stop him or even question him...then it's just human nature that that power will be abused.