I wonder why US cities where food trucks are common haven't gone the Singapore route and setup regulated "hawker centers". Sure, it may not be quite as convenient for consumers, but it would solve a bunch of other problems.
New York City doesn't really have surface parking lots anywhere with a lot of foot traffic, so that isn't really an applicable solution here.
What could be interesting is if a privately owned parking lot did something like this.
E.G.: https://maps.google.com/maps?q=food+truck+pod&hl=en&...