If you're from MA and win it, have it shipped to a NH FFL and ask them to swap-it for you, or trade it for a store credit. You might not get it's full value, but free is free.
I was wondering the same thing until I read the rules
Winner Selection: One (1) Grand Prize winner will be chosen in a random drawing no later than midnight November 15, 2009 from all eligible entries received by Game-End. If the winner cannot accept the prize for any reason, the prize will be forfeited and awarded to an alternate winner. No prize transfers, assignments, cash equivalents or substitutions will be allowed.