The curfew in Ferguson was obeyed by recognized leaders and organizers, but [ hundreds of people stayed past midnight in pouring rain ]( http://www.theguardian.com/world/2014/aug/17/ferguson-curfew-protesters-looting-michael-brown ) rather than let thugs chase them out of their town. This article says the thugs did use tear gas.
Ссылка: https://stallman.org/archives/2014-may-aug.html#18_August_2014_%28Curfew_in_Ferguson%29