Just received an email from Rivian notifying me of First Mile drive availability for R1S at the Costa Mesa service center! Seems like lots of openings, but looks like will only be available for a few weeks. Jumped on a reservation for next Wednesday. I'm glad that it's in Costa Mesa, as I really didn't want to drive up to Venice again and who knows when Laguna Beach will open. I'm currently an Oct-Dec 23 delivery window, but hoping for a miracle pull-in when the dates are updated by end of month. For those in the So Cal area, look in your account and you'll see the reservation notification if it is available for you.