There is a "west coast" in Petaluma, owned until recently by the same lady as the P-Hill shop. She was selling the petaluma location for a very low sale price recently (around $20K).
The old ads for West Coast Petaluma were done in tandem with their Pleasant Hill ads. So either a) the new owner does not know how to post CL ads b) the new owner chooses not to run CL ads, or (c) the place actually closed.
I learned recently that most massage parlors hire the same service to compose and run their ads, rather than do it themselves. This is why all the CL ads tend to look similar...