FYI- If you are stopped and you attempt to remain in your vehicle when told to step out by a LEO, that is a violation of law (obstruction 18.2-460). Powers given in PA v Mimms and I have seen people get ripped out of cars and found guilty for exactly what was mentioned above (during traffic stops for traffic offenses). Also, a LEO can order passengers out of a vehicle as well (MD v Wilson).
On another thread, Novacop addresses the question of whether it is legal to decline an officer's invitation to exit a vehicle. But how does this apply while armed if you are on school property? If you step out of the vehicle while armed in the school parking lot - FELONY. If you attempt to unholster first (and you manage not to get shot) then it is no longer carried concealed - FELONY.
Other than relying on the milk of human kindness from the officer, is there anyway out of this?