I just came back from vacation in SF from NYC and decided to go visit AFA on my last full day, a Tuesday, only to be disappointed that it was closed.

My flight was Wednesday at 1:30pm and the store opens at 11am, which cut too close for me to go. I was willing but my girlfriend didn't like the idea. Can anyone explain to me why AFA along with most eateries in Japantown are closed on Tuesdays?