And the founders realized that, as well as recognizing that it was –important to be disorderly now and again.
I don't recommend shouting "Fuck the police" at the police, because it's rarely all that useful. But it doesn't warrant arrest and harrassment. In the immortal words of Lenny Bruce, 'Take away the right to say “fuck” and you take away the right to say, “Fuck the government.”' And take away the right to say "Fuck the government" (or their law enforcement branch), and your really don't have much freedom left, do you?
Georgia cops pay $100K for jailing woman who said “Fuck the police”
Amy Barnes was jailed and held in solitary in 2012 when she called out “fuck the police” as she bicycled past Cobb County cops who were questioning a suspect by the roadside.