The Lao temple looks like they hold their festival indoors, but it also is a congregation business meeting, and from the photos on their web site it does not look like it is geared for outsiders. I looked for the Berkeley temple, they don't seem to have a web site, but it looks like in Berkeley they celebrated at a local Thai market on Friday.
So I will seek alternate forms of entertainment. Maybe find a Thai massage? There's one on Saratoga Ave near the Albertson's.