But they didn't tell him to get out of the car yet. He should have rolled down the window yes, but that's a separate issue than Penn vs Mimms.
The time between them ordering him out of the car (not asking to roll down the window) and them forcing him out was a few seconds.
A DO, not a chiropractor as you might be thinking. Vast majority of DOs practice exactly the same as MDs, many going through the same post-graduate training.
But they didn't tell him to get out of the car yet. He should have rolled down the window yes, but that's a separate issue than Penn vs Mimms.