The last time I drove to Sonoma, I took I-5 and stayed overnight in Grants Pass. Unfortunately my alarm didn't work and I slept until almost noon, so I didn't have time to look up the Rogue Creamery. I went down again last August and was going to drive, but the forest fire smoke in southern OR and far northern CA was awful, so I flew. I got an overdose of smoke last year, and it seems to have caused permanent damage.
Next time I'll go in late May, early June, before fire season starts! Rather than take I-5, I'll go as far as Central Point, visit the Rogue Creamery, and then backtrack to US 199 at Grants Pass.
BTW, if mold grows on hard cheese, just trim it off and the cheese will be fine. Wrap the remaining cheese in cheesecloth instead of plastic to keep it dry and discourage mold growth.
What happened to Roquefort? Another moldy cheese, unique to a small area of southern France, and made from sheep's milk!