Yes, punish him, jail him, but the Sex Offender Registry should be reserved for the clearly dangerous.
It is less useful if you have to wade through an enourmous list of idiots like this to try ahnd figure out who in your neighborhood is a threat to your family.
A list of people who rape and molest children should not be cluttered up with people who have just done something stupid and wrong.
So9
Would you feel safe letting your kids go over to swim at his house without your supervision?