He's not wrong. This is the lesson that conservatives who were happy to exact political violence against their enemies failed to understand. They can have political violence enacted against them.
It can and most likely will happen to them and they're having a surprised Pikachu face moment about it.
Absolutely not. If you want to track them that badly then put an ankle monitor on them as part of their parole conditions.
Please note I don't agree with the ankle monitor either but at least it can't make up data about these people. If you're paroling them and they have paid their debt to society, I think it's fair to have them check in with a human parole officer at intervals and leave them alone.