The 4.0 update gave us auto present door handles which is a convenience because you don't have to reach into your pocket for the fob when you approach the car. However, upon exiting the car no such convenience exists. Because there is a 60 second delay before it auto locks, I am forced to reach into my pocket for the fob to lock it. If not, the car is sitting not only unlocked but lit up with door handles popped out inviting visitors. Now before anybody accuses me of being too lazy to reach into my pocket... the convenience is that if I have my hands full, I don't need to deal with the fob. This happens quite a bit. I had this convenience on my 7 year old Lexus IS350. Surely it should exist on the model S. There should at least be a setting to auto lock at an adjustable time delay-- I'd set mine to about 10 seconds.