312 ARRESTED IN POT-MARCH BUST New York Daily News; New York; May 7, 2000; RICHARD WEIR and SALVATORE ARENA DAILY NEWS STAFF WRITERS;
Abstract: Cops arrested 312 people for openly smoking pot during the Millennium Marijuana March in lower Manhattan yesterday, locking up nearly one-third of the demonstrators.
Many of the arrests were made in Battery Park, where the march turned into a rally with bands and speakers, and where marijuana smokers were easy prey for plainclothes police dressed in tank tops and T-shirts.
So to answer your question, yes, people do get imprisoned for smoking pot. Any more stupid questions?