I more mean if any big corp is offering “unlimited,” it’s a good indication of some version of a ripoff / unfair terms of use.

The added humor in the food truck case is that you can visually see both the extent of the physical supply and the queue of consumers rendering that physical supply incapable of supporting the “unlimited” offer all in one single field of view, leaving you to surmise the only possibility has to do with outrageous food engineering to reduce resource usage and leading to questionable end product (thus undermining the “unlimited” offer’s intended effect to draw customers).