I almost had an accident when the ancient “Budweiser” sign on I94 near Armitage in Chicago was replaced with an 80-foot electronic billboard.

It was a darkish night, and while I was looking the board board switched to an ad with a mostly-white background. It was like looking into 1000 suns. I was temporarily blinded with those purple spots in my vision and actually rolled onto the shoulder near the wall before recovering.