Thanks to all for posting !!
Well, I got off my lazy butt and did some testing.
I rolled down the window in the toad after pushing the start button once to put it in the accessory mode. It is designed to shut down after 20 minutes in the acc mode. I then closed the door, double checking that the wheel was unlocked.
I returned an hour later and found that it did time out as none of the accessory lights were lit.
Reaching in through the open window, I found that the steering wheel was still unlocked even though all else was shut down. Once the door is opened and closed after that, the steering wheel once again locks.
So I guess that is the secret. As long as the door isn't opened once you exit the vehicle, it will remain unlocked.
Maybe someone else down the line will find this info.
Ken & Laurie
2015 Berkshire 400QL