Did you pay for this sled in full, or just the required money down to snowcheck it?
If its not paid for (which I doubt it is since you dont have a VIN number), I sure as hell would not pay the price you agreed to when you ordered it. In another 10 days polaris will come out with rebates and incentives on the 17's.
This whole thing sounds a little fishy. Why would it get ordered in the dealers name? Why is it sitting in a warehouse? Sounds like the dealer might not be on good terms with polaris and could be behind on $$$.
good luck. Eric