Bennett, please just shut the fuck up about your improvements to burning man. For your traffic flow 'improvement', you notably didn't provide simulations, suggested a broken alternative, and didn't even bother to fully understand the situation before jumping in with both feet. For this one, you've done something similar.
In particular, the problem when the ice line is backed up is -not- because the ice wasn't prefetched. It's because half the time they can't get it out of the trucks any faster, and half the time they can't get the customers out of the way faster. Adding prefetch to a throughput bound system does not improve performance. If you had the experience of going through the lines more than a few times, you'd have maybe picked up on that before offering your advice.
I'm not going to say that traffic isn't a problem, or that ice queues aren't stupidly long at times. But these are hard problems, and they have been thought about extensively by smarter people than you, smarter people who have more information and experience than you. You insult all of them by discounting that so blatantly.