Ford Motor Credit stop accepting payments, repo & damage vehicle Internet

In June 2010 I made multiple payments on my 48 month car loan to Ford Credit to bring the account current.  Ford's response was to disable my ability to make on line payments.  This caused a default and they repossessed my vehicle in July 2010.  As a matter of background this was a 48 month loan with $5,000 put down on a $17,000 sale price.  When I discovered this I called Ford Credit immediately and was given a payoff of approximately $11,500.  The statement that I had received less than a week earlier was about $2,000 less.  I then received another figure from Ford Credit that was about half way between the two numbers.  Since there seemed to be a variety of number that they were demanding I asked for something in writing which they said must be sent through regular mail.  They created the quote on July 30th and ran it through their postage meter on August 5th.  I received it on August 7th and the sale date of the vehicle was August 9th (the following Monday).  I had a cashier's check made out for the payoff, called Ford Credit to tell them that the payoff would be sent immediately, had a cashier's check for the full amount issued to them and sent via Priority Mail on the 10th.  I also faxed a copy as they requested.  Ford Credit did not acknowledge receipt of the payment until August 17th.  In the mean time I was being charged $3 per day for storage.  When I confirmed that my car would be released I called the auctioneer and was told that they were not able to get the car running.  It was running fine when they took it.  The contents plus the license plate were taken by the repossession agent that apparently keeps odd hours and is not able to allow me to have my plate and contents returned at any predictable time.  So what has happened is that Ford Credit refused to accept my payments as they had for the previous 2 years, simultaneously placed me in default, took my car, eventually accepted a full pay off of the loan, and now the auctioneer has told me that the car is not running.