I've got a feeling that some of these changes we're experiencing now are going to be permanent. Since my work function has no real reason for an office, other than oversight, I doubt that I'll be going in again this year. Bicycle commuting is over until something drastic changes and I suspect that I'm probably more typical than not.
I had the same "failsafes" - clearing out the sinus and getting out of sorts when I miss a ride or two - but they haven't really kicked in for the motivation. I do get out for exercise though which maybe substitutes in that regard.