Check those bolts!!!
I just got off the phone with my local dealer. I had brought my bike in for an oil leak, and discovered that ALL of the valve cover bolts were loose; to the point that they were able to spin the crush washers by hand. They suspect it happened over time, but my last track day probably accelerated the process. I typically check all of the 'visible' bolts prior, but never thought about the valve cover bolts. Needless to say, I'll be adding that to my list going forward.
Fortunately I only lost a small amount of oil, so no permanent damage or oil on the track. I feel like I dodged a bullet, and am contemplating buying a few lottery tickets.