VIDEO: Driver apparently fast asleep while Tesla is on autopilot on freeway

LOS ANGELES, California -- A disturbing video appears to show a driver fast asleep in his Tesla Model 3 as the car sails down a Los Angeles freeway during rush hour traffic.

An Eyewitness News viewer noticed him on the freeway and said he called 911 when he saw the sleepy driver.

He said the driver was still passed out when he exited the freeway.

People are questioning: As more people drive using autopilot, how do you keep them from dozing and driving?

SEE ALSO: DUI suspect found slumped over in moving Tesla may have had autopilot engaged, police say

The CHP suspects a man had Autopilot engaged on his Tesla before he failed a field sobriety test in Palo Alto early this morning.