The easiest ways to be sure would be to either just book through a travel agency site which will display the penalties clearly or by telephoning AA ; the AA site is not the only place where to book

Looking at fares for SFO-GGT , it seems from checking Expert Flyer that the business fares are either non-refundable or fully refundable , so I think you will be ok

If you go through the booking process, when you get to the 'review and pay' page , there is a section 'Fare Rules' with a link 'Detailed fare rules' ; if you follow that link a very poorly formatted page is displayed , but if you search for cancel , it should not say "CANCELLATIONS ANY TIME TICKET IS NON-REFUNDABLE IN CASE OF CANCEL/NO-SHOW/ REFUND" , but should say " CANCELLATIONS PERMITTED FOR CANCEL/NO-SHOW."

it should display a fare basis at the top of screen - the refundable fares seems to end with "/SHRF"

Personally, I would just make booking by phone to be certain