As you might guess, we have deep expertise on-hand for the Foundation as to MTB/MSB laws, and can confidently state we do not engage in MTB or MSB activity at the Bitcoin Foundation; we're just a member organization.
The state of California is blanket C&D-ing all Bitcoin businesses.
I wouldn't be surprised if the C&D were blanket. That said, when you Google for "Bitcoin Foundation" you see an "About" section in the #1 result (your website) which begins, "Our mission is to help people exchange...". I wouldn't put it past the state not to have read any further. ;-)