I was told last week that Justin Bordbalash is no longer with Tesla. You may not want to wait too long for his Email response
Muhammad Abdelaal is the CPO specialist out of Buena Park, responsible for CPO sales in So. CA. He helped me with my transaction 3 weeks ago but I had the most success using Hanks tool to determine historical pricing for my target vehicle and then working with an experienced sales specialist (not a CPO specialist) to look for cars that aren't yet listed on the CPO site. Connor O'Neil was awesome to work with out of Buena Park.
Also, I highly recommend taking delivery in Fremont if possible and taking the factory tour. Awesome. We used the $750 we would have spent on shipping the car to So. CA on a mini vacation and drove the car home. Lots of fun