I tried booking through the AAA in NH and they couldn't do it.
Tried booking through the main AAA number and they couldn't do it. I had to contact the AAA in Florida to get the discount but they told me I needed to
pick up at their office. They are only alotted a certain amount of passes at their discounted rate. When they are gone (even if DC isn't sold out) you have to pay the full price. The AAA price would have been $275 opposed to $299 for the August date I wanted.