So a friend says to me 'what happens if you give me your fob after the car starts and you drive away'? I say 'let's try!'. And I do. And I make it about a block away and then start to wonder if this is bad... There's the little icon of a key with an exclamation mark through it flashing in the top right of my display - but the car seems to operate normally. How far could I go? Does *anything* happen? I wondered if it might shut down or something. I looked in the manual but it simply identified the icon and didn't say what would happen. Anyone know?