+1 to
Mike (I feel like I should change my screen name to that

) and to
Cougar. If this were me, I'd not only be walking away from that dealership, but I'd also be thinking about buying a Crownline or other competitor of FW. I would MOST definitely contact FW.
c5er, I've VERY sorry to hear about your experience.
What this dealer tried to pull, while ethically and morally wrong and bad business, bad customer relations, etc. is also FRAUD. I know it may be tempting to try to stick it to the dealer to try to get everything you want, but I'd take off in another direction. That boat has taken a lot of abuse with tons of weight in it while on the trailer, too much traffic, etc. at the show. You'll always know about that, wonder about it, and attribute anything that ever goes wrong with it to "that damned boat show it was in."
I hope you stick with FW, as the boats are great, but I'd find a different unit from a different dealer. In the event that you DO decide to proceed with this boat, I'd stick the dealer for ANYTHING you can get. But, I would not accept anything that forces you to go back there. Make them take real dollars off of the price, give you merchandise, option upgrades, accessories, etc. but DO NOT accept a free 20 hour service, 100 hour service, etc. If they have proven to not be trustworthy when you were there to catch them, they most certainly can't be trusted to properly perform those repair/maintenance services when you are not there. Don't ever deal with them again after this.
While being VERY careful about possibly committing slander on this board, I would keep an eye out on this board for anyone in your area and give them advance warning about this particular dealer. Be very careful in doing so, though. While "truth" can be a defense to any slander/libel suit, it is better to avoid that headache in the first place. However, others deserve to know about this dealer's questionable practices before the fact.
Sorry again, and please do keep us posted on your progress. We all want to see you come out as happy as possible in the end. Good luck to you.
_________________
Paul
2007 Four Winns Horizon 220Mercruiser 350 Mag MPI w/ Bravo III Drive
2004 Ford Explorer Limited (V8-AWD)
Pomme de Terre Lake (Southwest Missouri)