How many meals should you deliver in one delivery? In what order? Where can the food be in the car? (Is it ok to put it on the floor?) How long can the food be allowed to get cold before it's no longer ok to deliver? What are you expected to cover, insurance wise, for your delivery drivers? How is your business prepared if your delivery driver has an accident? How much do you need to contribute to vehicle maintenance? Who owns the vehicle?
Yeah, I'd say it's definitely not just 'throw food in a box' and driving it somewhere.
As much as you want, whatever order makes sense, anywhere, yes, FDA says 2 hours in the danger zone, google the rest or get a legalzoom consultation if you're unsure.