While all the orange groves shown in this episode are now tract homes according to Google Maps, "Johnny's Shoe Service" still exists at 8831 Reseda Boulevard in Northridge -- a full 64 Years later.
Suspect #1 Joe is driving a 1959 DeSoto Firedome Sportsman 2 door Coupe, Mathews describes it as a Two Tone Blue. Same model as in E34: Express Delivery. Suspect #2 Pat's car is a 1959 Chevrolet Impala 4 door Sedan. Widow/Suspect Gloria Jordan is driving a 1957 Ford Country Sedan Wagon.