Originally Posted by I Bleed Ford Blue
The intelligent access on the focus will not allow you lock the doors with the fob in the car. You might as well leave a sign on the car that reads "STEAL MY CAR PLEASE" because leaving the fob with the car is an invitation for theft. Even using a magnetic 'hide-a-key' won't work because the fob is still too close to the IA sensor. Your best bet is to take the fob with you.
Except that I tried it. I have two fobs. One was in the house. The other in the car. I locked with the fob in the house. I went out to the car (leaving the fob in the house) and I couldn't open the door. I went back in the house, unlocked it, then came back out and opened the driver's door to retrieve the fob in the car.
Could they have made a change in the feature with the 2013's?