first, welcome to roadfood. we love burgers!
but, 40 miles is a long way to go for one. you have to provide, some sourt of entertainment, that they cannot get in the city. hhmmm
anyway, my gues is that you need signs out on the highway, miles away, like pedros, south of the border… ever heard of it? he has signs ever mile or so, for like two hundred miles in each direction. oh yea, that would be south of north carolina border, on i95, for those who didnt know.
so signs, and car show is great, and you got to get some radio and t.v. chatter. and, you need something to draw them to that strip mall. a stronger base store, a music/bar skating/bowling/snake shooting, puttputtgolf, something…..hotel… ???