Damn, I missed that exhibit at SFO back in 2013! I have been impressed with several other (not bicycle-related) exhibits I chanced upon while killing time at the airport.
The staff who curate these do an impressive job, punching WAY above their weight/class when it comes to "casual museum fare". Wish I knew this had been there when it was on, I didn't even know there had ever been bicycle racing at the Polo Field.