Perhaps you might be interested on how AP works... The article states no one was driving. I am not sure I believe that.
The cars do not work that way. The driver was an idiot and it's lucky no one else was hurt.
Autosteer requires you to keep your hands on the steering wheel by sensing torque applied to the steering wheel.
From Tesla;:
Do I still need to pay attention while using Autopilot?
Yes. Autopilot is a hands-on driver assistance system that is intended to be used only with a fully attentive driver. It does not turn a Tesla into a self-driving car nor does it make a car autonomous.
Before enabling Autopilot, you must agree to “keep your hands on the steering wheel at all times” and to always “maintain control and responsibility for your car.” Once engaged, if insufficient torque is applied, Autopilot will also deliver an escalating series of visual and audio warnings, reminding you to place your hands on the wheel if insufficient torque is applied. If you repeatedly ignore these warnings, you will be locked out from using Autopilot during that trip.
You can override any of Autopilot’s features at any time by steering, applying the brakes, or using the cruise control stalk to deactivate.