So as of today, Monday the 28th, the status is that the road past Hanalei is closed to all except Local Traffic at the school just past the green church. Everything up to that point is normal. If you didn't know there had been a problem, you wouldn't know there had been a problem. (I did not try going down to any of the beaches on the way. If those roads are closed, there is no indication of that along the main highway.) It appears all businesses in Hanalei are open and working normally.
Exception is the access to the Hanalei Pier. The road leading to the Pier parking area is blocked to all except Local Traffic. Parking is at the Pavilion, and you have to walk, if you want to access the Pier itself. You have to walk along the beach to get there. It was pouring torrential rain, so I didn't get out of the car to test that out. But there were a lot of cars parked at the Pavilion.
Dave