So the cop pulls you over, leans in and says, "Let me have your keys." What's he doing there? At the end of the day, the cop can't make you turn your car off. What he can do is say, "Mr. Rawlings, please step out of the car." Then, if it's truly Mr. Rawlings on the scene, I'm turning my car off, getting out, put the keys in my pocket, and lock the door behind me. That's how I'm going to handle it. He may try to stop me, but if he does so, he's doing so illegally, cuz he's not entitled to search my car, and he's not entitled to seize my car, unless he has probable cause.