He seemed stunned, but in recognition that he was not in a position to remove whatever was stuck on the gas. He clearly was processing something, then bailed.

Meanwhile there's the hero in the navy blue shirt, seeing what needs to be done and doing it. I like to think I've had moments like that.

At the same time, he does benefit from not being amongst those plowed by the cart, so that's one reason he's able to show a comparatively clear head. Heck, he comes in from off-camera so perhaps he's the original cone-thrower, only making right the catastrophe he initially caused. I've also had moments like that!