Yosemite update: Just drove back over Tioga Pass east to west. Squeaked through just before they closed Tioga Rd for the upcoming storm, so the road was REALLY deserted this time
USFS campgrounds east of Tioga Pass are now closed, as were pretty much every federal campground I saw on the East Side. In several cases I talked with federal employees who said seasonal closures and seasonal layoffs happened a couple of weeks earlier than usual this year due to the shutdown.
On the plus side, I was motivated to suss out some awesome new (to me) boondock sites. And, as daveb says, fall colors over there are spectacular right now.