Warning about remotely activated door locks...

[IRGuy]

A couple of days ago I read that the crooks have come up with a device that can capture the signal your remote locking/unlocking key ring fob sends when you remotely lock your car in a parking lot. They watch you use the fob to lock your car and and capture the signal, then while you go into a store or restaurant they unlock your car and steal stuff from it.

Best to use the switch in the door or the key lock instead.