The house band, known as "The Impalas," is made of all Supernatural crew members. The Impalas first played the 100th episode party and played many additional wrap parties and united again for the 300th episode party at the world famous Commodore Ballroom in Vancouver.
The beer drunk in the bar is Family Business Beer Company brand, which is owned by Jensen Ackles, Danneel Ackles, and her brother.
While passed out, Sam has a vision of Chuck's memories. The page that Sam sees is from the monologue about the Impala from Swan Song (2010).
The Road House is called Swayze's after Patrick Swayze who is a son of Texas and starred in Road House(1989), this is also the 30th Anniversary of the movie.