That's extremely interesting. So many auto shows won't allow Tesla to show, because they aren't a member of NADA and don't pay the fees.
While there have been Teslas at auto shows, they are often brought in by individuals under the auspices of a car enthusiast group.
The fun little tidbit that most people don't know, it can be infinitely easier to bring a Tesla into an exhibit hall, because you normally can't have over a gallon or two of fuel in a vehicle in the exhibition center.