Wow. I don't think our parking inspectors do that sort of shit here... I haven't spoken to anyone that has ever been booked. I got a note on my windscreen at uni last week for not 'displaying my ticket'. It was clearly displayed. Ass hats. But I didn't really mind cos it was a $0 fine
I feel sorry for all you guys that have been done by these low life bastards. As it's clearly said in Harold and Kumar "You were probably the big asshole in your high school, right? Used to pick on guys like us every day, right? Then graduation day came and we went to college and you went nowhere, and you thought, ‘hey, how can I still give them shit? I know, I’ll become a cop. Well, congratu-f**kin'-lations. Your dream has come true. So why don’t you just take this little quiet Asian guy with the Anglicized name that treats you so well and give him a couple other tickets?"
I hope you have the time and money to take them to court. It would feel good to shove their knowledge (or lack thereof) other rules up their ass.