Not mine either, but good for you to check.
About 25 years ago I flew to Manchester, New Hampshire and rented a car at the airport. I drove around a week and returned the rented car and flew home.
Oops. When I got to the Jackson, Mississippi airport late Friday night and went to my truck in the parking garage, I couldn't find my keys. Luckly I had a hide-a-key under the truck and got it and drove home.
My key ring had my truck key, my car key, my house key, my office key, my Kroger key fob, etc., on it.
After searching for a day or two, I had new keys made and I asked the Manchester car rental folks if anybody had turned in any keys. They said, "No, but we will enter that in our lost items list."
About 2 months later they found my keys and mailed them to me. I was shocked but very happy.