Hey, that keyless deadbolt is nifty.

Actually, I just realized a potential flaw in my idea, so keep this in mind. My thinking is that if you leave the deadbolt unlocked, then the fire department won't necessarily damage the door jamb where that deadbolt is. That's why they can lock up when they leave.

But that's an assumption, I guess. If they see the deadbolt face from the outside, who's to say that they won't take an ax or a Haligan to it? So, my assumption is that they'll try to pry the door near the main lockset first, and hopefully the door just pops open and they'll leave this unlocked deadbolt alone and it is undamaged and can be locked behind them.

Actually, so that's one potential reason NOT to use that keyless deadbolt. If it's already locked when EMS gets there, they might have to damage the door jamb to get inside. However, if they can get the door open without damaging the jamb, even if the keyless deadbolt is locked, then that would be an idea on how to lock up after they're done.