I live in Marin and it is tesla-city here. Everyone has a model S. There are intersections where multiples pull up at the same time.
I've also seen 8-10 model X cars in the last week or so.
Unrelated: the other "it" car in Marin seems to be a diesel powered BMW X5 or diesel porsche cayenne, which is just baffling to me. Why anyone would want to visually "see" a brand new modern car, but aurally "hear" a badly maintained lawnmower is beyond me.
You'd think these rich marin moms would be more discerning, but what do I know...