EDIT: since apparently a bunch of people woke up with the wrong foot this morning or forgot to check the group they’re in:
This is a joke. Do not steal or vandalize speed enforcement cameras (or anything else for that matter). That’s against the law and you will likely get arrested.
If you’re addicted to crack or any other drugs, please seek professional help.
Panic braking from 20 km/h isn’t going to be impeded by a brick surface, even wet brick.