Did you ever consider walking away? I would have got up and demanded my deposit back plain and simple.
If they refused I would have taken the issue to the presiding motor vehicle administration or small claims court.
I would not have been nice about it at all.Live and Learn
Now that the deal is done maybe I would contact CW headquarters or DMV but honestly I think I would move on since the damage is already.
Maybe a rant on RV.net makes one feel better but but it doesn't change a done deal. At this point go enjoy your RV and forget the lousy deal. Time heals all wounds. Debating the deal at this point only prolongs the agony.