There was a call to action sent out to the members of the KC Tesla Owners Club and boy did they respond well!
In total we had 22 Teslas show up for the event, a record for the club, and the largest turn-out of any single car club at the show this year. The Fox4 news segment of the show displayed the Tesla's multiple times in their coverage.
Here is a quote from a Tesla employee (unofficial):
Wow!!! This is so amazing
Photos and videos of the event can be seen here: Google Drive Great Car Show