In the end, I took the Metro downtown to find some supper, followed by some dessert at Ben & Jerry's.
I slept reasonably well and quite late. While there was some stiffness in my left leg, it was very much better and I rode die Fledermoose around town on various small errands.
At one point yesterday, I was wondering if the pain was related to scar tissue from an old, self-inflicted, machete wound. Then I remembered that I had cut myself at that place on the right leg not the left one! I must confess I had been rather worried about potentially lasting effects yesterday. However, those fears appear to have been ill-founded.