If he's hunting public land, he'll get caught soon enough. If he's hunting private land, who knows.
I don't know if I would snitch on the guy. Unless he p!ssed me off

You'd have to have a game warden be able to catch him in the act. Tough to do unless you could call in with his exact location while hunting and the warden drop everything and respond right away.
Hopefully he gets caught on his own.