This is silly! You did the right thing by self-reporting but go the book thrown at you? This is not how you encourage hunters to be honest. Mistakes do happen and being punished in such a way after doing the right thing does nothing but deter others to confess to wildlife crimes.
A buddy of mine shot a small cow moose on a Bull or calf only license. He f'ed up, dragged the small cow moose out of the bush and turned himself in. He was hit with a $2000 fine, lost all tags and got a hunting prohibition for two years. Do you really think this guy will report anything ever again? My FIL shot a beautiful whitetail buck on the rifle opener, turns out, the buck had been poached/shot in the brisket weeks before and was if very bad shape. He called the CO's, they showed up and seized the entire deer as "evidence" including the rack and took his buck tag. He was left with no tag and no deer for again doing the right thing. He told them straight up though, "do you really think I will report wildlife violations in the future now that I know I will lose everything?". A few weeks later a CO he knows very well dropped off the sawed off antlers at the house in some secret drug deal... Ridiculous...
Honesty IS best policy. Losing your tag(s) and losing the animal should be the most you get for self-reporting, otherwise you just encourage people to SSS.
Back on topic; I've called the CO's three times for injured animals, one had been poached (shot in the ass before hunting season), one had been most likely legally shot but injured in the leg (its front knee joint was a 360 pivot with he foreleg flailing around) and the last was either a sick/injured mule deer fawn that was blind with apparent head trauma just chilling 1 foot from a busy road. Other than that, I see a lot of poaching related offences like cut fences or trespassing, I've never reported those as the landowners normally don't want to deal with that and would rather fix the fence or let them roam around. One offence I see often is the lack of orange (or white, yellow and red which are legal here), I don't report it but instead tell the person a sarcastic comment if I get a chance.