That’s the huge problem with owning a GOOD older pickup. It’s worth next to nothing except to the owner. I’d always disable my 01 CTD. We’d hook on and tow 1/2 way across the country with that pickup…. and I knew if I lost it I’d get peanuts and a huge payment in return. Remove the starter relay, unplug the injection pump, put the t-case in N was a standard procedure when traveling.
Haven’t looked into any procedures on our newer pickup although I probably should.