Officer Ed Wells and Albert Porter are riding in a 1965 Plymouth Belvedere, a contrast to the 1971 Plymouth that Officers Reed and Malloy ride in here. Also, a lot of GM cars are featured.
LAPD Reserve police officers, at the time, had to purchase their own uniforms, which were well over $100 at the time. I believe they had to be paid employees to be certified as a Peace Officer, so they were paid $1 a year.
The Kings to who Wells refers is the Los Angeles National Hockey League (NHL) franchise i.e. Los Angeles Kings.
In this episode, written by Stephen J. Cannell, among others, there is a character named "Tawnia Baker", played by Kathleen Lloyd. In the Columbo episode Double Exposure, also written by Stephen J. Cannell, among others, there is a character named "Tonya Baker" credited as being played by Arlene Martel, although she doesn't appear.
Toward the end of the show, Malloy and Reed pull up behind a green 1969 or 1970 Chevrolet C10 pickup truck. The Chevrolet lettering on the grill is covered by silver tape but the blue bow tie on the hood is uncovered.