An
comment.
Recently there were emails going around that you can open your remote locked car via a cell phone and spare remote located anywhere if you've lost the keys or something. Well, its true.
All you need to do is take the call on your cell phone, let the other person put the remote to their cell and press the unlock button. Your cell needs to be near your front door / hood. It Pops open!
Its tried and tested! A very neat and handy way to get out of the lost-key situations!