Thanks Jo!
I was too nervous to try riding to work. Then I remembered reading someone's advice about driving partway and biking the part I felt more confident on...it worked really well to carpool in with my coworker and then ride home. I was able to take my time and not freak out when I realized I wasn't exactly where I wanted my route to take me. If that had happened while riding in, I probably would have had a meltdown!
I did check with my coworker, and she is happy to pick me up any morning and drive Myrtle and me in.

I am hoping to do this about twice a week from now on.
It's supposed to be 70 today, maybe 80 tomorrow, so perhaps I should scout some alternate routes!