We play at a tavern on a thursday with a 30+ member game group, you can get a pint of beer, and a brick oven pizza. The tavern has changed hands, though it originally was owned by a guy who was a DM, it's logo was even a elf woman with a tankard and bow. Like you say, thurs would probably be a dead night without us, instead it can get pretty huge, if extra people show up. The 7 to 11 time slot works well for the most part.I'm imaging you siting around throwing dice next to the slushy machine. Sorry, I have an underdeveloped sense of humor.
Though it is not an entirely ridiculous idea. I've played games in Manhattan in lunch / convenience stores. A lot of them have downstairs seating for the lunch crowd that are mostly empty off hours. Many people don't have the living space to comfortably host a group of people with space to spread out, so they game early evenings in the seating area. All the snacks you want are just upstairs. The stores don't mind because it brings them more business than they would normally get in the off hours.