on january 5, 2017 at the camargo toll booth on state highway 45, about a thousand citizens demonstrated against the "gasolinazo" (gasoline tax rise). the state police were dispatched to end the demonstration; when they arrived, rather than confronting the officers, the demonstrators raised their hands in mass to show that they did not carry weapons, then sat down and sang the national anthem with one voice. the act was unprecedented in national history.