Interesting - I've been to Bechtel's office and never noticed the car - but it was on business and security there is a tad tighter than TSA and FPS do for airports and fed buildings so I wasn't looking around much.

When growing up, I didn't get into the Bayview/Hunters Point area much. It was a dangerous place in the 1950s-60s. So I'm not really familiar with the businesses that were there. Mayta-Jensen, though, was around even then (advertising, anyway). Sounds like they developed a line in landlording along the way...

I think the only SP steam I ever saw working was from one of the overpasses in that area - Paul Ave.? Too young for cameras back then.