Isn't there a "brushless" car wash south of Shallow Alto on El Camino that's supposed to be good?
It's been at least a decade since I spent time south of SF, so that's all I've got...
There is. I want to say it's called Lozanos? Not sure that's right...but I remember they seemed good. Haven't been in a decade.
EDIT: Well, there you go. My memory is better than I remembered.
http://www.yelp.com/biz/lozano-brushless-car-wash-mountain-view