The first country music bar Reed and Malloy pull into while looking for the cowboys is the legendary Palamino Club in North Hollywood. The Palamino was known as the most important country music club on the west coast hosting the major artists of the day as well as promoting local up and coming acts. It also served as a location for several films and TV shows.
The gold 1967-68 Ford Mustang coupe with white vinyl top 'studio car' can be seen when Reed and Malloy are checking the parking lot of the Palomino Club.
187 = murder. The use of this police code in this instance is one of the few times in the series when the code itself is explicitly explained.
211 = robbery.
ADW = assault with a deadly weapon.