What a fantastic waste of carbon emissions to fly some donuts across the country, rather than buying something locally
Presumably they are traveling via standard freight routes and not paying someone to hold a single meal on a passenger flight...
Bringing Central American fried chicken into the U.S in family trips was so common, that the fried chicken restaurant had to make special packaging so the smell wouldn't escape from the box to the airplane cabin.
They even ran an ad about that:
So, right after someone in SF watches a video describing in great detail how amazing a new NYC chicken sandwich pop-up is, they're almost certainly willing to pay a premium to try it.
I somehow understand factory made food, or even transporting items that last good while, but individual orders?