Yes, I have managed to disable the wall switch by using the configuration options in the Z-Wave menu in the Configuration section.
I’ve just set Node Protection to “No Operation Possible” and this is the output that I see

2020-06-16 23:05:54.837 Info, Node003, Value::Set - COMMAND_CLASS_PROTECTION - Protection - 0 - 1 - No Operation Possible
2020-06-16 23:05:54.837 Info, Node003, Protection::Set - Setting protection state to 'No Operation Possible'
2020-06-16 23:05:54.838 Detail, Node003, Queuing (Send) ProtectionCmd_Set (Node=3): 0x01, 0x0a, 0x00, 0x13, 0x03, 0x03, 0x75, 0x01, 0x02, 0x25, 0x98, 0x2d
2020-06-16 23:05:54.838 Detail, Node003, Queuing (Send) ProtectionCmd_Get (Node=3): 0x01, 0x09, 0x00, 0x13, 0x03, 0x02, 0x75, 0x02, 0x25, 0x99, 0x2f
2020-06-16 23:05:54.838 Detail,
2020-06-16 23:05:54.838 Info, Node003, Sending (Send) message (Callback ID=0x98, Expected Reply=0x13) - ProtectionCmd_Set (Node=3): 0x01, 0x0a, 0x00, 0x13, 0x03, 0x03, 0x75, 0x01, 0x02, 0x25, 0x98, 0x2d
2020-06-16 23:05:54.847 Detail, Node003, Received: 0x01, 0x04, 0x01, 0x13, 0x01, 0xe8
2020-06-16 23:05:54.847 Detail, Node003, ZW_SEND_DATA delivered to Z-Wave stack
2020-06-16 23:05:54.886 Detail, Node003, Received: 0x01, 0x07, 0x00, 0x13, 0x98, 0x00, 0x00, 0x05, 0x76
2020-06-16 23:05:54.886 Detail, Node003, ZW_SEND_DATA Request with callback ID 0x98 received (expected 0x98)
2020-06-16 23:05:54.886 Info, Node003, Request RTT 47 Average Request RTT 140
2020-06-16 23:05:54.886 Detail, Expected callbackId was received
2020-06-16 23:05:54.886 Detail, Expected reply was received
2020-06-16 23:05:54.886 Detail, Message transaction complete
2020-06-16 23:05:54.886 Detail,
2020-06-16 23:05:54.886 Detail, Node003, Removing current message
2020-06-16 23:05:54.887 Detail,
2020-06-16 23:05:54.887 Info, Node003, Sending (Send) message (Callback ID=0x99, Expected Reply=0x04) - ProtectionCmd_Get (Node=3): 0x01, 0x09, 0x00, 0x13, 0x03, 0x02, 0x75, 0x02, 0x25, 0x99, 0x2f
2020-06-16 23:05:54.896 Detail, Node003, Received: 0x01, 0x04, 0x01, 0x13, 0x01, 0xe8
2020-06-16 23:05:54.896 Detail, Node003, ZW_SEND_DATA delivered to Z-Wave stack
2020-06-16 23:05:54.936 Detail, Node003, Received: 0x01, 0x07, 0x00, 0x13, 0x99, 0x00, 0x00, 0x05, 0x77
2020-06-16 23:05:54.936 Detail, Node003, ZW_SEND_DATA Request with callback ID 0x99 received (expected 0x99)
2020-06-16 23:05:54.936 Info, Node003, Request RTT 49 Average Request RTT 94
2020-06-16 23:05:54.936 Detail, Expected callbackId was received
2020-06-16 23:05:54.982 Detail, Node003, Received: 0x01, 0x0a, 0x00, 0x04, 0x00, 0x03, 0x04, 0x75, 0x03, 0x02, 0x00, 0x82
2020-06-16 23:05:54.982 Detail,
2020-06-16 23:05:54.982 Info, Node003, Response RTT 94 Average Response RTT 356
2020-06-16 23:05:54.982 Info, Node003, Received a Protection report: No Operation Possible
2020-06-16 23:05:54.982 Detail, Node003, Refreshed Value: old value=0, new value=2, type=list
2020-06-16 23:05:54.982 Detail, Node003, Changes to this value are not verified
2020-06-16 23:05:54.982 Detail, Node003, Expected reply and command class was received
2020-06-16 23:05:54.983 Detail, Node003, Message transaction complete
2020-06-16 23:05:54.983 Detail,
2020-06-16 23:05:54.983 Detail, Node003, Removing current message
2020-06-16 23:05:54.983 Detail, Node003, Notification: ValueChanged
however, if I now run this from the Developer menu

this is what I see in home-assistant.log (OZW_Log.txt is not modified when I run this command):
2020-06-16 23:10:29 INFO (SyncWorker_11) [homeassistant.components.zwave] Config parameter 1 on Node 3: No protection. Roller Shutter responds to push buttons