Well, 2 weeks later, and I'm back on the bike, but only on the MUT for now. Even there, I notice my rolling balance is a bit lacking, and things that used to be easy, like riding up to an intersection and unclipping, now are done a bit more reluctantly, and further from the line. Likewise, merging into traffic is still a bit difficult.
One thing that I used to do a lot was visually looking at my cogs/rings to see which gear I'm in; I can't do that now. I can barely look down at the cadence meter without wobbling off the road! I'm hoping that my recovery still has a bit more to go....