Just went to a steakhouse with some friends, and I didn't drive. There was a Model S that just left as we came out and I casually asked the valet "was that a Tesla?" He answered yes and laughed! I said whats so funny? He said the owner knew his car was NOT in lot of the restaurant while eating by checking his mobile app and came out concerned. When the owner went back inside the valets Googled the Model S and they figured out how to "in the future" TURN OFF MOBILE ACCESS! This feature needs a PIN CODE ASAP! I will email ownership and I suggest everyone else do the same.