Around that time of day, I've frequently noticed that the OKT is not in. However, one of the girls normallu answers the door after 10-15 seconds, if you ring the doorbell once only.
Today, I rang it 3-4 times, and waited a few minutes. Nothing. The fly screen door was unlocked - so I knoced on the door. Anyone inside would have heard it. But still nothing.
Like I said - side driveway gate closed (presumably locked). Never seen that before.
Also, no answer on their phone when I called up around 2pm.