lost wallet and fake ID - WWYD?

if i had found the wallet, my natural curiosity would be to do something similar. I’d rifle through it, google the name, and try to contact the kid via twitter or something. If i couldnt easily find him I’d drive there; and i probably would have made a passive/aggressive remark to the mom with something like “oh it was hard to figure out who it was with all of those IDs in there.” Easy to do with a stranger. I’ve found 3 wallets; my heart has slightly raced each time on what to do.

In real life, the lady i work with/for has an 18 year old senior who has a fake ID.
I know about it. She does not. I have not figured out how to deal with this situation yet.