A motorcyclist was filmed attempting a daring stunt on a San Antonio highway on Sunday, August 12.This video was captured by Ace Scott on Loop 410. It shows the motorcyclist pulling a stunt known as the Superman, where the biker lays flat on his stomach while raising his legs in the air. Motorists can be heard beeping their horns in response.Police were looking into whether any report had been made to officers about the incident, KENS5 reported. Credit: Nathaniel Scott via Storyful