I think Eggleston said his pictures from this period were influenced by the design of the Confederate flag--a centered subject with everything moving toward the corners of the frame. If he wasn't pulling our leg with this statement, this is a good example of that.
Elliott Erwitt coined the phrase "anti-photograph" and this certainly goes against the grain of what is considered a typical good photograph. It's centered, distorted and everything in it is fighting to get your attention. Mostly, it's an interesting photograph. I want to know who this person is, where this place is located and, because no information is given about the picture, that makes it that much more appealing for me.
Because I'm from the South too, I've seen this type of scene before. So there is some familiarity in this photograph. Even though I don't know specifics, I can make up my own story and that makes it a comfortable photograph. All of Eggleston's photographs are comfortable for me.