Yes, he was in DH's cousin Pancho's bar.
Yeager plays the bartender if I recall.
If you watch that scene again you’ll notice that the astronauts make a toast to someone, and when they raise their glasses it’s in the direction of Chuck Yeager. I’ve wondered if that was intentional, if those actors wanted to honor Yeager.
“in DH’s cousin Pancho’s bar.”
I saw a documentary recently “The Legend of Pancho Barnes”, it was really excellent, you should try to see it:
http://www.legendofpanchobarnes.com/film/index.php