I don't have a good answer. Check this website. It mentions a $150 (!) shuttle. Maybe Greyhound has service. However, they may not let him haul a household of luggage since he is going to college.

In today's Wall St. Journal, there was an article about parents renting cars and letting their kids drive it. They said that nobody will catch them except if they get into an accident. In that case, the car rental company may make you pay for the damages unless the young man was signed on as an additional driver. If he is, there may be an additional charge.
http://www.wyld.net/bcs/localowl2/lo2_20000521.html