If they let you stay in the car, they’ve already decided you probably aren’t going to grab a gun from under the seat. So there’s no safety issue for them.

Dude, you aren’t making a lick of sense. Google “officer shot during traffic stop” and tell me again that keeping your window rolled down during a traffic stop is unreasonable.

crack the window as necessary, get out when ordered

two things he refused to do? What are you talking about, dude?