I had a problem with my 99 F150 4x4. My local service manager went to bat for me to try to get help but it was denied by Ford. I emailed Ford but never heard anything back. I wrote a letter and sent it snail-mail to the following:
Ford Motor Company of Canada Limited, The Canadian Road, P.O. Box 2000, Oakville, Ontario L6J 5E4
A few days after that I heard that my local service manager "got his fingers slapped" because he had tried to help me out. A few weeks later Ford phoned me to discuss my problem but all they would say was the basic "Too bad, so sad, you're screwed" type of thing. I wrote another letter to them and a few weeks later they phoned me again and this time they said that if they had known I was going to be that upset that they probably could have worked something out. So, to make a long story short, I don't think it will matter if you email them, phone them, write them a letter, invite them to dinner, send smoke signals, or whatever else you can possibly think of. In the end you have already given them your money so that is where their concern ends.
Lawrence