Impark actively sets the time on their parking machines off to fuck with people.
One one occasion I got a ticket for failing to display (even though ticket was on dash) because the ticket machine clock was off by something like 10 minutes, so when the attendant went by it showed that I purchased the ticket after their infraction ticket was issued.
I called the number but they did fuck all and the next day I noticed the time was off the same on my printed ticket. If they can live-check credit cards, then can sync all their clocks properly.
Luckily I knew the building manager who contacted Impark and had the ticket squashed.
Active fraud.