One more question. If I would take the smart key out of the fob and carry it with me, leaving the body of the fob in the car, would that deactivate the fob so that it would not allow anyone to open doors? Seems like it would. As it would not have the security code.
It would also be interesting to remove the smart key from the fob and just leave it laying there, next to it. The fob is the object which is "broadcasting" the security code. I would think the doors and lift gate wouldn't be able to pickup the signal from the unattached smart key.
If this is true, then it will be extremely easy to devise a work around.