Zooz has a firmware upgrade for the ZEN15 switch (version 1.3).
The major change is that it allows for disabling power changes on the physical unit. There are 2 issues:
The ability to disable the manual (physical) power switch is not yet part of the native Hubitat driver. It's parameter 30 (and part of this ST driver) SmartThings/zooz-power-switch.groovy at master · krlaframboise/SmartThings · GitHub
After updating the firmware the switch did not respond correctly to commands from the hub nor did it reflect the proper firmware version on the device page. I wasn't able to get the switch to work properly without removing and re-including.
UPDATE: This firmware is not working with my dryer. It shuts off within 5 seconds of starting. Not a Hubitat issue as the condition exists even when not connected via Z-wave