Airplane Changes Banner Ad w/o Landing

O.K. so I am waiting in a Florida WM parking lot for my Wife who's shopping when I hear a very very low aircraft. I LOVE that sound! I look up and it's a Cessna. Looks like he is coming in for a landing at the Ft. Walton AP across the street but no he is dropping off one adverting banner then picking up another. All without landing. I had to to go over there and film it. I'd never seen this before. Thanks for checking out my videos btw.