Not a LEO, but I can offer some suggestions.
Stick your hands out the window and yell back at the cop that you cannot get out without using your hands.
Same for responding to the get-on-the-ground command.
They have radios and most cops love to come play back-up. Let them invite their friends to form a circular firing squad.
This is also why you should have digital voice recorders* if not as well as dash cams that you can turn towards yourself.
* - know your state laws on audio and visual recording, and if legal remember that "two is one and one is none" applies to most things in life - and especially so to the important things.