I'll agree that most police checkpoints are an unnecessary show of force and a thinly veiled tactic for netting revenue. There are acceptable
exceptions like if a dangerous fugitive is in the area, or it's prom night...
Though, what the OP describes was neither an interrogation or any real show of power. When cops want to interrogate you there is no question as to
what is happening. If they want to show their power it will be known from a knee on the back of the neck. It could have been much worse than 30
minutes that will never come back.
Granted, a badge and a gun are overt displays of authoritarian power wherever and whenever a cop is present. The only thing that will make that go
away is not having a police force. We are a very long way off from that. Their implied power may not be justified but it is certainly very real.
Sometimes it's best to just let sleeping dogs lie.
That's not to say we should tolerate unprofessional behavior from law enforcement, but rather choose your battles. Kill 'em with kindness. Nothing
was won here. The cop probably got a headache from dealing with crap like this all day. (Woo-hoo score one for the revolution brah!)
Cops are cocky right? Even the girly ones. Maybe her confidence was mistaken for tyranny?
In all fairness, some cops actually do let sh-t go all the time. A small part of that whole 'corruption' thing actually swings in our favor and
involves them not wanting do mountains of tedious paperwork, flood the jail with rape-bait, or really give a damn about the gram of dope in your
pocket.
Lighten up, they didn't even ask you to get out of the car. If they want a probable cause there will be one.
Did you not as well make a showing of power by invoking your rights?
You had a fat white guy pass and didn't use it?!

