They'll make sure you get to your appropriate city area. Yes, you may drive to Boys State, although you won't have access to your vehicle during the week.
Parking is available on base near the barracks.
No, once you're registered, you are not to leave base except for an emergency. We have a doctor on staff to assist you in any way possible. If you're a diabetic, we have refrigerators available for you to use. Make sure to let someone on Staff know what you need. Yes, you should.