We have several delivery companies in my town who do the same thing, but they work closely with the restaurants to update menus, to handle orders, etc.
DoorDash sounds like they are amateurs who don’t know how to partner with local restaurants.
You can’t use another company’s logo to advertise your own service without their approval. That’s the problem here.
Not only that, but there’s no recourse for In-N-Out if someone from DoorDash doctors the burger, they don’t have any control over the product, without a formal business arrangement with DoorDash, that would have to pass through proper legal channels.