My family once found their car in the parking lot of the grocery store with the groceries of someone else already inside the car, and a note and contact info left on the windshield about how this person unlocked my parents’ car thinking it was theirs, accidentally loaded their groceries into the wrong identical vehicle, closed the trunk, and then couldn’t unlock it again after noticing the mistake.

Very gentleman-thief of them. Maybe Lupin needed your car for a bit :)