Stunt Spider-Man on Hover Board Thing

This is the stunt spider-man on the back of the camera truck. Driving up and down Euclid Avenue right outside my office in Cleveland. It was a bit chilly that morning and the Spider-Man costume doesn't appear to be insulated very well. The stunt actor was usually wearing a robe that swimmers wear to keep warm on the set. It kept that amazing wardrobe protected and out of plain sight. During these shots, he was sort of riding this plywood like a surfboard or a skateboard as it was dragged behind the film truck with several cameras filming the whole scene. Spider-Man was twisting his torso from one side to the other very quickly. I wonder if he's supposed to be trailing the armored truck being driven by the Sandman.