I know, it was all my fault.... I selfishly took 30 seconds of their day away from them.
Yes, they got caught behind me for about 30 seconds. Marked two lane road, no paved shoulders, still within city limits., with some oncoming traffic. When there's not a paved shoulder, I tend to ride within 2 feet of the white line (3 feet at the most).
I had the sense that something was getting ready to go wrong as they were passing me. As they were coming around, I checked my rear view mirror to see that there was no one else behind me.
As soon as they got in front of me, they put it all the way over on the right edge of the pavement, and brought it down to a complete stop. I was riding at somewhere between 18-20mph. I had three choices. Go to the right and take the ditch (and likely get hurt), run into the back of them (and likely get hurt), or pass them on the left using the oncoming lane.
I took #3 and went around on the left. Thankfully I already knew that there wasn't anyone behind me. There was no oncoming traffic, and I made a successful pass. I was around them quickly as they were at a complete stop, and I was still moving at a good clip.
My next fear was that it wasn't yet over for me, but it thankfully was. They turned off onto the first side street that they came to, and disappeared. Once I realized that I was in the clear, I pulled off in a safe place and let my heart rate come down a bit. I think that also being a motorcycle rider for 25+ years helped me on this one, to be able to quickly make a decision and execute it, that kept me upright with the rubber side down.
After several years and 18,000 miles on the bicycle, this one was a first... and a stunning new all time low.
As much as I hate to think it... it really may be time for me to ride with a GoPro or something similar.