It was because Girl and the Goat (owned by Top Chef Season 4 winner Stephanie Izard) were hosting a Top Chef finale party which were happening in Chicago, Los Angeles and New York simultaneously.
The cast of Real Housewives of Atlanta were in attendance (except pregnant Kim Zolciak). I heard that with the exception of Sheree, they were not social or gracious to the party goers, especially Miss NeNe. While other celebrity guests went to Gilt Bar after the finale, NeNe and the Housewives went to the weekly Super Fun Party at JBar where they continued to be antisocial….. WOW!
(thanks to the tweeters and Audarshia of 312 Dining to keep me informed)
Pics via Peter Thomas twitter, and @dominusleporis