They had a laugh because it's funny the first time, but this type of error will cause nightmares if the problem is not dealt with quickly.

Serious question: what would it take to make it illegal to send false tickets?

I am not a lawyer, but I think falsely accusing someone of a crime can be a crime if it's "known to be false"

In this case it wasn't "known" to be false because there was no human checking things.. but the fact they (who?) sent the ticket means they assumed it was true.