Ran a test. Repeated 2 times and received the same results.
- Unlocked the door from code, showed up within a second or so in the app as unlocked.
- It locked maybe 10 seconds later on its own.
- Smartthings took about 30 seconds to reflect the state.
This seems reasonable to me, ST does not want to over poll devices.
I am using "Z-Wave Lock Reporting" from the Lock Code Manager thread.