Use to Live in a Marina right by the OLD Henry Ford Plant in Long Beach. The road leading to the marina and on across the drawbridge to Terminal Island was named "Henry Ford Ave" and the area was used frequently for filming movies and tv (99 44/100ths Dead; Emergency, Kojack, and the one that had Raymond Burr in a wheel chair). Any way, I'd come home from work down Anaheim St and turn left onto Henry Ford and find a road block with two cps there. Roll the window down and say "I LIVE down there in the Marina" and get waved on through, same thing pulling into the marina parking lot. DID get invited to enjoy the goodies on the catering truck more than once
Glad you had a good experience with folks that did care about public relations. In LA County location filming would not only be daily, but in several places as well daily most likely. So I'd bet the locals drive into delays because of them all the time in southern CA. While the Monterey Peninsula was a popular location for films, commercials, documentaries, and occassionally for a story line or two of some TV series, not all that many per year on average were done there.
Public relations was a concern to me as a resident and the LC, so I did whatever I could to accommodate residents and tourists. Not always easy on the Monterey Peninsula with very limited through roads in some places (back then anyway). As the LC I had clout and could smoothe things over most of the time though, especially important on Hwy 1 that is the only road with no other easy way to get through south from Carmel along the coast. The fly in the ointment sometimes was the director, or if present the producer as some of them couldn't care less about public relations on location. With directors it was all about getting the shoot wanted no matter what, with producers staying on budget. Battles with the unyeilding types were common, but I managed to win many of the battles by reasoning with them. Delays between takes are very common on a location set for any of many different reasons, and they can be very long, even hours. So it's crazy to keep roads blocked unnecessarily during them. I always had a shooting schedule and script (plus their updates that can change several times each day), and was always on location during all ops at it to handle whatever came up. So I always knew what the flow was at the moment on location. Sometimes I just ignored them and opened the roads anyway long enough to clear traffic when I knew it wouldn't interfere with production anyway. Some of the nastier types didn't like it, but I never failed to get my high for the time pay checks or the bonuses after (that often were way more than all the pay checks combined), and I got all the future work I wanted.
I was a Perry Mason fan (50's/60's), so also enjoyed Burr's series that you mentioned that started right after it - "Ironsides" (mid 60's).