Heh heh. Yeah, I realized the flaw in my idea this morning...but then thought like JejuSoul that I could take the battery out so that the vehicle wouldn't allow starting. Of course the fob would have to be hidden really well in case some potential thief - who figured out how to get inside - knew about the starting without a battery in the fob trick.
I will probably just keep the spare at home, but it sure would be convenient if the spare was nearby rather than all the way back at the house. I'm comforted by the fact that it's hard to lock the fob inside the vehicle accidentally, but I could still lose it somewhere.
Anyway, thanks for the input.
Kissimmee, Florida USA
"Even 93 miles of range is 3 times farther than the average person drives in a day."