Well, from another point of view- you are selling food, and I can understand where they'd want to be careful about that, health laws and all...

However, while you do make great cookies, maybe a better idea would be to serve as a pick-up and delivery boy to various places? Give your customers a list of stores/delis you'll visit once a day and bring by lunch. That way if there's a vegan, a sushi enthusiast, and someone who just wants a ham sandwich, they can all order from one spot.