A lot of people pull in here at Aunt Jo's use the rest rooms, grab a sandwich and a drink and hop right back in the car and go on down the road. I don't know if they are in that big of a hurry or if they can't take the heat, but they sure want what is coming from this kitchen.
If you look closely at the pavilion picture there is a man seated there eating , I don't think you can see his wife that was with him in that shot she had gone to the restroom so some do actually take the break as you suggested and get some fresh air. I know I have, and I also have done the grab and go routine there as well in years past.