I'm an ex Juvenile delinquent and car thief. It all happened before I was 16, so it doesn't show anywhere. I even got a Top Secret clearance in the navy.
I'd have to know more about the kid. I'd grade him on appearance, quality of friends, work habits, degree of remorse for the act, attitude toward law enforcement, and maybe some other things.
I'm not too much in favor of beating him to death over it, but not too much in favor of coddling him, either. Number one; make sure he gets through high school. Then, maybe the service will appeal to him. If not, then a trade school of one sort or another....
If the kid is NOT going to finish high school, has friends that look like dirt bags, looks like a dirt bag himself, then I would take drastic action. But my experience is, you do the best you can to love the kid anyway.
My father and I didn't survive my adolesence. He forced me off into the navy, refused to allow me to come home after Boot Camp, refused to allow me to come home for Christmas, and I never forgave him. Not going to, either. Jerks have kids, too.
So you'll have lots of chances to blow it, lots of chances to make up.....best of luck with all of 'em.