Remembrance of thing that rolled past

Sitting outside the hospital where my mom has just been admitted, I am looking at a car parked at the curb that has M.D. plates, which revived this memory:

Thirty years ago or so, while my friend Jon and I crossed the street to enter our elementary school one morning, a car rolled into the crosswalk and knocked Jon down. Jon wasn’t hurt, and the driver got a tongue-lashing from the crossing guard. The driver’s M.D. license plates said: MD 48205.

Yes, I remember a license plate from thirty years ago. Weird.