This is basically what meal-delivery services are doing in San Francisco. They stock up on meals in delivery cars and anticipate where the demand would be and drive there.
I don't know why someone isn't driving a route in a van rigged to have curry and rice permanently cooking/warm. Different dish each night. Cheaper for advanced orders. App that tracks location of the van and handles transactions.
If Tuesday was chicken curry night and the cost reflected avoiding the variance and random delivery costs that drive up prices for other food services, I'd buy every week.
Driver plus someone to hand over the food or leave it at the door.