If you can find where the car is located, you can call a locksmith to make you a new key...or to even rekey the ignition. If is a keyless ignition you can go get another key from the dealer.
No keyless ignition. I believe it to be in her driveway, but no way to get there.
I can get the ignition rekeyed. But can't she just tow it back? Crazy back and forth.