Not sure what you are saying/implying.
Surely the highest bidder was aware of the price he was willing to pay before placing the bid.
Just remember the highest bidder only wins the auction because there are other people also interested in purchasing the car who are pushing up the price. Spend some time and have a look at the bidding history. There were several people very seriously interested in this car.
So even if the highest bidder sale does fall through, the seller has several other currently very disappointed people interested in buying the car.
No way I would ever sell any of my Escorts for less than $10,000. And if anyone attempted to tell me I am a crook I would simply tell them to f off.