I think you've got a clever little idea here! I think it might be more fun if the sandwich shooting was more aim assisted and the game was more about sniping customer's mouths with delicious sandwich drive-by chuckings. I had to position myself pretty precisely to get sandwiches to people and it slowed my experience down a lot.
Also - you have some absolutely adorable cover art but the assets in game aren't up to that bar which was a little jarring. Would love to see a more polished version that's using that aesthetic some day.