I think it varies by city. Today was BTWD in Sactown. Free bagels and coffee by some local cafes for the ride in and a rally at lunchtime at the CalEPA building. Got a free bottle and patch kit from the LBS but didn't win the raffle for a $500 gift certificate. "C'mon! Baby needs a full Dura Ace upgrade!"
The bike path was packed this morning. Perfect temperature but a little breezy. Tonight I'll take a detour to the office softball game. Life is good.