The Simple fact that he intentionally mentioned his constitutional rights probably triggered the policeman. The police simply do not like when civilians do this, and sure they have every right to react, wouldn't you? But although he may react with disregard he still should not have searched the vehicle at all. It being a DUI checkpoint the policeman had no cause to bring the situation any further than where it began initially. This is America, and it is definitely not perfect, but problems like this shouldn't have to be an issue. Our police protect us and our rights, not obstruct them and unlawfully treat anyone who knows their rights like a criminal. I hope that man pressed charges against this officer.
I hope so to. By failing to abide a simple request as "roll your window down" he automatically gave Probable cause that he may be hiding something.
"Roll your window down!" is a command, not a request.
If you are stopped at a roadblock where a police officer tells you to roll your window down, and you ask why, that is probable cause to believe you are aware of your rights and nothing more.
If the officer has a legitimate and lawful reason to stop you and to have you roll your window down, and he has no
substantial cause to suspect you of a criminal offense,
he is obliged to tell you why he's doing it. If in fact it is a legal roadblock and he is appropriately authorized to inspect for indications of DUI, and you
then refuse to roll your window down,
then the officer has some basis for
reasonable suspicion that you might be DUI and assert his authority to compel compliance.
But not before he informs you of the reason for the stop!
In the video example, the cop failed to explain the reason for stopping the driver and commanding him to roll his window down. He failed to inform the driver why he was being detained and proceeded to search his car without any
reasonable suspicion of criminal activity.
Now, you can either thank me for educating you or you can continue believing what best suits your indoctrinated authoritarian mindset.