Not having been to the olympics before, an important detail is how far this 'zone' covers. I am going to assume its a significant number of blocks, maybe even a

Not having been to the olympics before, an important detail is how far this 'zone' covers. I am going to assume its a significant number of blocks, maybe even a mile, around the olympic venues that include everyday businesses that people use, olympics or not. The not-selling-fries bit sounds hugely anti-competitive and way beyond the scope of what should be possible by this event. Payment cards go a step further. People rely on their particular card and the norm is to accept at least two kinds of cards. Creating a temporary monopoly on payment cards is again way beyond the reach of what is reasonable for a marketing agreement.