While it's good that you want to comply with the law, sometimes it's better to let sleeping dogs alone.
Even if alligator snappers were outlawed, why tell anyone? Besides, stupid herp regs are seldom enforced. I mean, most cities can't even keep up with stray dogs much less bother to check if someone has turtles.
Regs pertaining to poisonous snakes may be worthwhile due to some real accidetns that can occur but for turtles, I'd just go ahead and get your snapper unless you plan to keep it in your unfenced backyard in a neighboorhood that is full of kids. There is of course a common sense factor involved with keeping herps but basically don't ask, don't tell
Jodi