Sounds like a good idea, but they sell about as many burgers as possible anyway.
Its a drive through fast food restaurant, most fast food dont have phone in or online.
I would think they don't do online orders or phone orders because the orders would be sitting there and not be fresh so the quality control would go down. that is what makes In-N-Out hamburgers so special because they are always the same and you can count on that.
I have no idea but it sound great.
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