Is Tesla Autopilot responsible for another driving incident?

Tesla Model X

Another driver is blaming an accident on Tesla's Auto Pilot. A driver using Auto Pilot was traveling through Montana in the wee hours of the morning when disaster struck.

A post on the Tesla Motors Club forums by the driver's friend, claims a Tesla Model X using Auto Pilot was traveling along Highway 55 in Montana, near a sharp drop off, when the vehicle failed to stay on the road and plowed into a string of wooden bollards.