I'll do my best to try to help you with this concern. If you're available for chat let's get started. If not, I can switch to e-mail.
A gap year program like the Interim Program might be a reasonable option for him, but I'm not sure that they will have much experience with people affected by Asperger's. You'll want to inquire about that specifically prior to enrolling him in their program.
Have you looked into a social group for him? I found one in your area and this is the link. It's specifically for people on the spectrum (rather than their parents, etc) and through that and the program facilitator he might be able to find others he can relate to and resources to help him with career choices. Their website is as follows:
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Thanks for the info. Glad to read that there are specific groups.....but western Massachusetts is a far drive for him (he is on the coast in New London, CT). Any groups nearer the Atlantic coast?