look for it. Obviously, I didn't let them, which made them very upset. They claimed they'd tracked it to my house and were surprisingly aggressive about it so I shut the door on them. I was getting kind of nervous that it was some sort of home invasion attempt and wondered if I should call the cops, but they got in their car and left.
A few minutes later, they came back and rang the doorbell again. Not sure why I answered, but they apologized and said that they found it under the seat of their car and had just been tracking their own car. I happened to be in a cul de sac so it appeared to stop at my house.
Some people are scary and some people are just shockingly stupid. One of the weirdest things to ever happen to me.