If they had people pulling discs for the tourney, then you ought to let them do their thing & leave well enough alone. Then go dive in another pond.
Restraining order... ha!
Offer him $6.99, AO. If it's that money - like a couple of my discs near to my heart, I'd pay a finders fee just as if I had written "reward if found". Sucks out of principle, but worth it in the end?