After the two cops clearly check out your body for a few minutes, one of them questions, "Have you seen a car just like yours at all today miss?"
Shit, they recognize the car. This might be more problematic then you thought. "Why would I? This is my car, not someone else's car." You respond, trying to see how dumb you can get away with.
"Ummmmm... there are... multiple identical cars, so someone does have an identical car." The second cop intervenes.
"Golly! You learn something new every day. Could eather of you gentlemen help a lady out? My car got stuck in ghis here ditch, and I can't push it out maself!"
The cops then push the car out of the ditch, and you thank them for their efforts, while quickly flashing them as a reward. The cops drive off, still watching you from afar. The police are still after you, so you can't change back now.