I was playing around in the interior and wondered what would happen if I locked someone in. Well, it would suck to be them because they couldn't get out. When the doors are locked with the remote the locks 'deadlock' themselves, meaning they can't be opened from the inside (either with the handles or the button). But that's not really the interesting part. Many cars have that.
The interesting part is when I bring the remote close to the slot in the dash (note, I haven't even inserted it yet; the remote is still about 2-3cm away), these deadlocks disengage. Even without comfort access (although I think with CA you can't lock yourself in the car).
Just another of these little features to add to the list.