And I say that as someone who drove through a couple of times a few weeks ago.

I mean, I'm sure they actually shot it in Guernville (otherwise, why specifically name-check such a relatively obscure small NorCal city?), but yeah, it didn't feel at all like a place. And there's a lot of "there" in that area on Highway 1 stretching from Bodega Bay to the Russian River to Point Arena and beyond. Even in episode 5, we get what seems like dozens of establishing shots of endless freeways and vast urban sprawl that creates the Vinci setting; this was a pretty easy lay-up they missed.