Fortuitous
After driving all the way to the Thai Temple on the other side of the Bay, there was no parking to be had. Both temple parking lots plus an auxiliary one at a strip mall down the block were full, so I found a safe place to pull over and decided that rather than just go home I'll punch up local attractions on my GPS. Found something very close by called Quarry Lake Regional Park, which looked promising. As I made the first turn off the main road, there was a sign which said "Temple Parking" and two more signs later I was at the park entrance, right behind the shuttle bus which had been advertised on the temple's web site**. It cost $5 to park, but it was worth it.
**the web site did not say where the shuttle pickup spot was.
**the web site did not say where the shuttle pickup spot was.