As someone who drafts legal language all the time, I am sympathetic to the people writing the regs. But I'm even more sympathetic to the people with no legal training who are trying to figure out when/where they can fish. Fishing shouldn't just be for people with high verbal IQ.

Anyway, you could post a notice on every major access point on the Snoho/Sky/Snoqualmie system in a day (although I have no idea what kind of red tape you would have to go through to get the wording of the notice approved). You could probably just quote the particular portions of the alread-approved regs that apply to the section in question.