I will also +1 for OC Detailing in Fremont. They are currently in possession of my new S100D for a full wrap, CQuartz, tinting, and dash cam install. Both times that I called up the shop with questions about what I wanted to get done, I ended up speaking to Joe directly who took the time to make sure everyone question I had was answered before I even booked an appointment.
They're currently booked with jobs straight into January, but they were very accommodating in squeezing me in to get everything done prior to a late December road trip that I'll be doing. The shop was very clean, Alex took me through the quoted work and made sure everything was what I was expecting, just top notch all the way.
They also post to their own YouTube channel with videos of the various Teslas they've done, including some recent Model 3s, as well as the process they go through to correct paint defects prior to wrapping.
They may not be the cheapest compared to other shops, but I'm confident that I have some of the best people working on my car.
Can't wait to get it back though.