Procrastination almost got the best of me. I planned to write an update immediately after I finished my ride. Instead, my sit bones were too sore and my confidence too shaken for me to turn the computer on and describe experience.
In short, not good.
After 1.5 miles and eight minutes of riding, I had had enough. My seat was too low, and I'm afraid the saddle may be too narrow. My plan for Wednesday is to raise the seat substantially. I wasn't extending my legs fully while pedaling, not even close. I may also raise the stem.
In light of the soreness where the sun don't shine, I purchased some cycling shorts from Waldo Bikes. Hopefully that and the seat adjustment will make riding more comfortable. I may install the seat from my old Trek hybrid as a last resort.
I may ride tomorrow morning before work if I'm awake and ambitious.