I'm always skeptical of 'I spoke with guy at Tesla who said xxxxx' but:
Just dropped my car off at Miramar service and got to chatting with a guy who had just dropped off his Tesla. Turns out he works for Tesla and is responsible for Superchargers in the San Diego area. I gave him a hard time on Escondido not being open, and he passionately agreed. Said it's all SDG&E. First it was the transformers, which they now have. Now the wait is on a switch (pima or something like that). He said most likely 2Q.
Really nice guy. Said the focus going forward is building more on 8 East as well as along the 15.
He was not concerned about opening up chargers to 3rd party EVs given the $$ available to build more chargers that come along with opening up the network.