So when you called Ford marketing did they ask for your name, address telephone # etc. and then told you that you were in the system? I've done that a few times and they always found me, however I've never received an email from Ford. I would think that the emails from Ford should give you...
I've driven our two Prius' about 285k miles total. Headwinds make a huge difference, so that might account for some variance too. Included in the trips were two from Oregon to Iowa. Many from Oregon to Utah and Oregon to S CA.
Taking him at his word that he had an order and a down payment and a VIN # from Ford showing that an order had been placed for him. If so there would be a case for fraud.