There's no EV parade at the San Diego Earth Day celebration on April 20, but the organizers want to get some EVs into the Cleaner Car Concourse area. I've registered, but they say that they have only a few EVs registered so far.
It's a free EVent, and (as a minimum) you get a great parking spot, as well as exposure of the EV community to San Diego.
They will also have some (limited) power for recharging.
Website to sign up is