Well, funny you should mention sending a note to the owner...
The first call from Universal was a message on my voicemail that the harnesses would need to be replaced, and that the labor alone would be $1400. To be fair, I hadn't brought up the earlier repair yet.
Before asking them to cover it based on the incomplete earlier repair, I called the Ford 800# and asked the customer service rep to clarify for me if the ONP required the replacing of all harnesses. After reading so many posts about this recall, with some people having trouble getting the dealer to agree that all of the harnesses should be replaced, I wanted to get clarification on this point in case I had a fight ahead. The rep told me that, as far as he could tell from the documentation on the program, all harnesses should be replaced. He also told me that he was going to send an E-mail to Universal clarifying that. 10 minutes later, the service writer at Universal called me, apologized for the confusion (and the 18 hr labor quote), and assured me that they would take care of the harnesses. He didn't mention the E-mail, but I can't imagine any other reason for him calling me before I had a chance to get back to him.
Despite the persuasion necessary to get this done, I still feel like they did the right thing without any real arm-twisting. And I wouldn't have had any leverage if I hadn't had the full dealer letter and instructions from this site in my posession when I called Ford.