I goto MB at least 3x a year (at least). Never ever have I seen a Viper there. Seen a few ON THE WAY (I live in Hickory, NC...5 hrs away), but never any once we got there.
In fact, nicest ride I seen down there was our old one (Silver 95 Carrera4). And that was during 'black biker week' back in 98'.
Where are you staying now? Which part will/might you be moving to?