Remote Control Door Lock

You can buy a remote controlled padlock for $20. So that gets me thinking with a little bit of chain and a small amount of modification, anyone can have a remote controlled door lock. Now how cool is that?

I don't know if y'all ever had a car stolen before
But it's a real crazy feeling when you walk out the door
And you don't need a map or any kind of chart
That your standing in the spot where your car used to be parked
- from the song "Who Stole My Car" by Will Smith (c) 1989