Wow, I almost ran over an old man just now

He was riding that thing in the middle of the underpass
going at a turtle's pace of 5 km/h..ㅡㅡ
The car in front didn't see him and had to screech to avoid him, and I only noticed because I was startled.
I thought for sure there was going to be an accident, but I barely managed to avoid him.
The car behind me also made a loud screeching sound.ㅡㅡ
This is the old man walking away from there. I took a photo because I was so dumbfounded..
I seriously couldn't see him.. I sincerely hope he doesn't ruin someone else's life and just passes away peacefully soon.
It's still so terrifying right now.