I was reminded of this when I read a “Shower thoughts” post about clocks.
Where I live, there usually is free parking outside of stores and malls, but limited to a short time, such as 15 minutes or a couple of hours. People have parking discs that they rotate to show when they arrived, and put the discs up visible behind their windshields in their cars.
I have an automatic parking timer displayed in my windshield, that shows the time when I parked rounded up to the nearest half/whole hour. It’s a ”set and forget” thing, which auto adjusts to daylight savings. However, it speeds up 1 - 2 minutes a week, which I didn’t see as it rounds up the time, but I found out after a few months.
Once after parking, I took a quick dash into the store, took maybe 5 minutes. When I got back I had received a fine for the equivalent of 80 € for ”parking for 23 hours in a 2 hour spot”. They apparently don’t have to wait five minutes to write out the ticket if the parking timer was so off.
I didn’t contest the ticket, I considered it a learning experience and a reminder to never blindly trust technology.
Around here it was made illegal to chalk the tires. Now they chalk the ground right next to the tire but I never figured out how they know it’s not a different car by the time they come around. I’ve never seen different colored chalks either.
I’m guessing the enforcer has a very specific spot they mark, i.e. the exact center or precisely in line with the valve. If another car parks there, it probably will be far enough off to be confident it’s a new car.