In rural areas such as this, automats would make no sense, financially. You can attach a little diner to a convenience store at any truck-stop and pay your food-service staff less than minimum wage. The owner has to make up the difference to minimum wage only if the tips don't bring the staff's income up to minimum wage.
I think it's unfair, having an aunt and a sister who have worked in the restaurant industry for years, and watching them struggle. Why not minimum wage for the staff, and let them keep the tips individually (and share them with the bus-boys who clear their tables) instead of pooling them? The restaurant industry has an edge over a lot of other fields. I'm not sure if other states have laws in place to extend minimum wage to servers, bus-boys, etc, but it's tough for people in such positions to make a living, even if they are great at their jobs.