Except the purchase page clearly state that autonomous features are not avaiable today, and the car itself constantly reminds you to be in control.

Also, Autopilot on Wikipedia: "An autopilot is a system used to control the path of an aircraft, car, marine craft or spacecraft without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator's control of the vehicle, allowing the operator to focus on broader aspects of operations (for example, monitoring the trajectory, weather and on-board systems)."

Again: "Autopilots do not replace human operators. Instead, the autopilot assists the operator's control of the vehicle"