Originally Posted by ItWasMe

We have found a couple of wallets over the years, in parking lots. We took them to a phone nearby, found phone numbers, and called the owners. Returned those wallets to their owners. If we couldn't find a phone number, we would have turned it in to a nearby business (whose parking lot we were in). That wasn't our first choice, since we knew that as long as we had it, and were looking for the owner, the wallet was safe. It never once occured to us to be worried about police entrapment.

Note to self: forget about being a good samaritan in New York if I ever visit.