Something Melissa might want to check into...
I was reading about this situation where certain Honda odometers have read higher than actual mileage and warranties have been extended by 5%.
Here is a link with various information about it. Not sure if the 5% extension would be enough to help in your case, but it is worth checking into.

http://www.odosettlementinfo.com/

If you're not part of the solution, you're part of the precipitate.