Conversation so far:
What happened at woodstock?
At Woodstock in 1969, Hoffman reportedly interrupted The Who's performance to attempt to speak against the jailing of John Sinclair of the White Panther Party.
was he successful in the interrupting?
He grabbed a microphone and yelled, "I think this is a pile of shit while John Sinclair rots in prison ....

Question: what happened after that?
Self-contained rewrite: What happened after Abbie Hoffman interrupted The Who's performance at Woodstock in 1969?