I went down to the harbor today about noon. I walked into Kaloko-Honokohau National Historical Park (which, technically, was closed) and was pleased to see that, at least in the area by the fish trap, the water appeared to have come up no further than high surf during a high tide normally does.
The harbor looked OK. The water was murky, the boats were being gently swept back and forth by the weird tides. Probably there's damage I didn't see, but it looked fine (click for larger).