"Bro, what are you doing?" Weatherl exclaimed in the recording. "Oh, my gosh. That is the most wild thing I've ever seen."
The man was probably going about 15 mph in a 60 mph zone, WFAA-TV reported.
Weatherl told WFAA-TV he thought the man looked like he knew what he was doing.
"I think he’s done it before based on how calm he was, I don’t think this was his first rodeo," Weatherl said.
A Lime spokesman called the man's actions unsafe and said riders should not take the scooters onto highways, The Dallas Morning News reported.