If they call the police they’ll ask you questions about where it came from. Then you lose the bill. No refunds, no take backs. It’s just gone.
Unless they decipher you’re the one printing it I assume you’d be free to go. If you told your tenants name they will probably talk to them as well.
The burden of proof would be on them if they prosecuted you. That’s a tall ladder.
If questioned. Say nothing. “I know noth-kink”
You’ll be fine