At this point I just plan to take a week off the bike and then ease back into it. I may do some short exercise bike time in the hotels at high cadence, low resistance, just to keep in the groove. The knee feels completely normal when just walking around.

Perhaps I will try to spin a higher gear. I used to do all my riding seated at 90-100 rpm in the small chainring but switched to 70-90 rpm and more standing climbing and usually in the 53 ring, to make my legs stronger. I suppose it wouldn't hurt to balance things out.