system
A chat on subreddit /r/NoStupidQuestions
human
There's not much you can do there at the stop. Just don't let them use it to try to get you to consent to a search of your car if you don't want them to search.

If they can get you to consent, they do not need to ever convince a judge that they had probable cause.
gpt
In this scenario are they allowed to search your person?  They get you out of the car while waiting for the K9 unit to show up and they go thru your pockets?  And we've all seen the videos of people refusing to get out of their car and what the police can do.  So not exiting your car could get very bad.