I wonder what happens when a robot gets physically stuck in the middle of that grid. Do they have a trolley that humans can use to skate over and dislodge the offending device?
I imagine they set some sort of exclusion zone around the broken robot, then drive out in the large platform and pick it up.
I kind of wish this would turn into a giant robot wars for a few days of the year, maybe you can buy a ticket to control one of them for the day, if only it weren't such a waste ^^'