The incident came days after a fire tore through the Notre Dame Cathedral in Paris.
Nearly 9 out of 10 cigarette smokers first try smoking cigarettes by age 18, according to the Centers for Disease Control and Prevention.
The scheme, which ran from 2013 to 2017, cost the university an estimated $3 million, authorities said.
The artist, who missed scheduled gigs in Boston, was taken into custody with three others at the Lewiston-Queenston International Bridge.
Berreth, 29, was last seen on a neighbor's surveillance camera with her year-old daughter, Kaylee, and her fiancé, Patrick Frazee, outside her home on Nov. 22, police said.