Beta Autopilot was engaged, driver had hand on steering wheel, vehicle was traveling less than 35MPH (speed limit) and coming around a corner when it misjudged the road curve. The road curved to the left and as the car took the turn it took too wide of a turn and veered slightly off the road. Unfort the front right side of car went up and over the begining of a rock incline. The front right tire blew out and ONLY the side AIrBags deployed (both sides). The car traveled about 500 yards along the road and then turned itself off. I could not get the horn to work, nor put it in neutral. There were no warning signs before incident. In fact the I belong to a beta driving scoring rating and for that day Tesla rated me a 91/100. I called Tesla roadside assistance and they said they would not provide any help as it was viewed as an accident and not a self-driving issue. It was reported to Tesla and I have called several times to try and understand why the car didn't stay in the lane and why only the side airbags deployed. I reported this to Tesla Customer support and was now told they would not provide any information based upon their analysis, although initially I was told that it would take 5 weeks for engineering to review and get back to me. Vehicle is at repair facility and was told damage to car will be almost $28-30K. Car previously had issues with Forward Collision Warning system going off, although I was not aware there was a recall regarding this exact problem,