I am new to all this but managed to get google connector working, kind of. Its a trail version and does not stay logged in to the google account but...
Found it - but it looks like it's the "User settings" you can lock - change softswitch 71 to HEX 08 - but you have to use the admin password - sorry...
I can't remember how, but I'm sure you can lock the "Utility" section with a password, and then have a separate password for "Administrator setting"...
if you're going to transport it in a vehicle, try and tie it down, but don't bend the scanner. I've seen a machine, that wasn't tied down, somersault...