I have heard from some people with CC permits that the thing to do is keep your hands firmly on the wheel and calmly tell the officer there is a gun in the car and where it is. Then follow the officer’s directions.
I never know if there is a gun in the car, so it is a non-issue, I keep my mouth shut, and keep hands in sight and NOT moving. License is already on dash by the time the truck comes to a stop.
An ex-felon I know sticks both hands out the window past his elbows whenever he is stopped, and waits till he is told what to do. Perhaps he knows more than the average driver?