Well it started at some university in the Midwest as an Orientation Week prank but then it grew legs and for a week, cities all over the US came close to grinding still. The idea was simple. Whenever they had an autonomous car behind them, drivers would slow down to a crawl.
With so many people doing it, the autonomous cars couldn’t overtake and cities ground to a halt. People waited for their driverless Uber and Lyft cars, that arrived an hour late. People who had sent their cars home to park waited seemingly forever to get their ride home. By the end of the week many people were lining up for public transport that couldn’t cope with the dramatic increase in demand and even with reduced traffic the roads were still reduced to a procession. The only thing missing was the marching band leading the cortege.
Mayors threatened to change bylaws to make it illegal to drive slow and asked universities to reign in their students, but by then everyone who loved driving or had a prankish sense of humor joined in and the freeways and arterials crawled like a funeral procession, flashing their lights and beeping their horns.
After a week or so the novelty wore off and life returned to normal. Many a tale was told around the bar table about the personal impacts while they waited for their cars to come an pick them up.