The ones I know have made contact and keep those contacts as healthy as they can. The thing is, based on my experience in two different areas of the state, you really do have to have city council-members (or county supervisors) who are receptive to the whole thing in the first place. Otherwise you're going to have to go to the people, or you're going to be spinning your wheels.I wish I was a s confident in you as you seem to be. Granted I'm not speaking in general of commercial growers but don't be surprised if a couple are in bed with city council. It's a tactic that's been used over the course of history. Outlaw homegrows, next each county will override state law and only allow one commercial license. I might not be a pro grower but I've e worked in mj for over a decade and even longer in bussisnes and city councils hardly ever do anything without getting their beak wet.
Also, specifically here in California, Proposition 64 specifically disallowed banning of home cultivation, allowed certain types of bans (outside cultivation), and therefore many of these cities are trying to find their way around it. I just read that there is now a lawsuit pending in Elk Grove that will be addressing at least one type of action (full banning, IIRC).