Apparently window air conditioning units don't need windows anymore. Maybe they're actually sucking cool air from the restaurant into the hot kitchen. Or maybe they're just dumb. Whichever is more likely.
"The only A/C in the apartment was in the living room with a wall fan to draw in the cool air to the bedroom. With 95+ degree summers, that didn't cut it so I took a box and some duct tape and made a direct vent. Worked perfectly!"