you may want to look at the logs of the device to see why it unlocked, if the routine didn’t do it.
You’ll see stuff like:
APP_COMMAND = An app or routine told the drive to do this.
DEVICE = Someone manually did this to the device.
2016-02-23 12:33:17.240 PM CST
3 days ago DEVICE lock locked Front Door Lock lock is locked
2016-02-23 12:32:57.555 PM CST
3 days ago DEVICE lock unlocked Front Door Lock was unlocked with code 3
2016-02-23 12:32:27.445 PM CST
3 days ago DEVICE lock locked Front Door Lock lock is locked
2016-02-23 12:32:18.962 PM CST
3 days ago DEVICE lock unlocked Front Door Lock was manually unlocked
2016-02-22 10:26:24.635 PM CST
4 days ago DEVICE battery 77 Front Door Lock battery is 77%
2016-02-22 9:29:45.065 PM CST
4 days ago APP_COMMAND lock
2016-02-22 9:24:44.073 PM CST
4 days ago DEVICE lock locked Front Door Lock was manually locked
2016-02-22 9:22:06.776 PM CST
4 days ago DEVICE lock unlocked Front Door Lock lock is unlocked
2016-02-22 9:22:04.423 PM CST
4 days ago APP_COMMAND unlock
2016-02-22 12:50:18.636 PM CST
4 days ago APP_COMMAND lock
2016-02-22 12:46:17.430 PM CST
4 days ago APP_COMMAND lock
2016-02-22 12:41:19.682 PM CST
4 days ago DEVICE lock locked Front Door Lock lock is locked