Hopefully this will be the last chapter to the story. Got my truck back today. Alternator was charging and they put the electrical system under a load test and there was no open circuits or other unexplained parasitic power draws.
It turns out it was another defective battery. For what it's worth, the service advisor said that OEM or Interstate Batteries are generally the ones that they see the least amount of problems with. And the Motorcraft battery 30.00 cheaper with a longer warranty.
The guys at Advance Auto were champs are refunded me the money for the original purchase. All in all....I've got my truck back and getting ready to head out on vacation tomorrow.