"will often": no, not at all. Could occasionally. You're not helping your argument by overstating this. The courts are not stuffed with people being fined for saying things that are "mildly offensive".
And nothing of what you're talking about is government surveillance. The police aren't the government, and the police do not routinely surveil the populace.
They wouldn't have the staff, for one thing! The police actually wanted to close the police station in the town in which I live -- population over 100,000 in the wider borough -- and replace it with what amounted to a kiosk and service from police stations five miles away in each direction.
And yes, really: for those viewers who persist in believing that the surveillance system in Hot Fuzz exists in reality... nope