We have owned our 85D for about 6 weeks. I just received a notice on my smart phone that a software update was available for our model s. The 17 inch screen indicated a software update was scheduled to begin at 11:15 PM and would take an hour and a half. I was provided the option to start the update at the assigned time, switch to different time, or to start now. Since we will not be using the car in the next couple of hours I chose start now. 90 minutes seems like a long update. Is this normal or could this be the awaited auto pilot additions?