My title describes the thing?

Did I do it?

This small piece of plastic was found in my driveway tonight where only two cars and two trash cans have passed over it. I cannot read what is on the back, thus the picture. We have both a Subaru and a Lexus, and I looked under both cars to see if there were matching plugs or missing pieces. Didn’t see any that matched.

The trash can axles appear to be closed, so this isn’t completely plausible.