A followup: After calling 7 dealerships, none seemed to have any idea what I was talking about. One insisted that I needed the special switch to activate the feature and no programming was needed.
The local dealership said they were willing to give it a shot.
With not much confidence and blank stares, I dropped the explorer off last friday and requested that the neutral tow feature be activated. I gave them the key, my phone number, and told them the detailed instructions to perform the procedure were on the dashboard and walked away hoping for the best.
3 hrs later, they called and told me the car was ready (and they did a couple of recall/repairs as well). Only charged me 1/2 labor to boot.
Feature works perfectly.
Installed the demco baseplate this weekend and she's ready to go.
Thanks for all the help John and this great web site.