In 1991 or so, Reggie and his 2 sons (IIRC) walked into our Electronics Boutique in West Town Mall.
He bought a sh*t ton of video games and a couple Sega Genesis consoles.
Pulled out some sort of credit card I'd never seen before to pay... shockingly, it wasn't declined ;-)
He had his gravel-like voice, was still a huge dude and was super friendly. Most people didn't recognize him, but I sure did.
Didn't bug him for his autograph, and off they went.
Of note, Shaquille O'Neal and most of the LSU basketball team also came into our store once. One of our employees ran over to the athletic goods store, bought an official basketball and asked for his autograph. He got it. Probably worth alot these days I'd guess.