I had a very similar experience when I was honeymooning in the Panhandle with the Mrs.
Two A-10s in formation pulled off a perfect 560 helix right around us on the beach (to get a better look at my gorgeous blonde wife) before powering off into the Gulf. We were the only two people on the beach (that's why it's called the Forgotten Coast).
How do those pilots know to pick the A-10 fans!
Actually, it's pretty easy. Anyone not wearing tie-dye or code-pink pink is an A-10 fan!