Keep in mind that dealers don't just buy vehicles from Ford. They also buy them from other dealers.
When I test drove an 08MMH, my dealer in MN had two on the lot (apparently, a few days earlier, they had four). None of those 4 were shipped to them by Ford.
My dealer purchased them from a dealer in NJ. I was told that they purchased them from the NJ dealer for Invoice price, and thus could not sell them for below sticker. However, if I wanted to order one, they would be able to sell it for below sticker price. (Or in my case, X-Plan price.)