Hmmm... Wonder how much those cost... The trolling possibilities would be endless!
For removal... Hair dryer on the inside to excise the air in the suction cups and expand it, reducing suction?
Long slim blade to slide in and separate the suction cup from the windshield?
If the tickets/fines are high enough just smash the windshield and buy a replacement windshield, they're not THAT expensive.
Drill holes straight through it and into the suction cups to break the suction?
Or there's always this option:
