The eviction was largely peaceful, in contrast to the closure of camps in New York and Oakland. This from the LA Times:
Hundreds of police officers swarmed the large camp at City Hall’s south lawn shortly after midnight, encircling the demonstrators in less than 10 minutes. By quickly establishing a perimeter, police managed to take control of the scene in the first moments of engagement.
No tear gas was used in the shutdown of what was the nation's largest remaining Occupy camp. More than 200 people were arrested in the operation that involved 1,400 officers.
“They were like storm troopers. They encircled us,” said protester Cheryl Aichele, who was sitting in the middle of the south lawn in a circle with other protesters when police first entered the camp.
The protesters largely kept to their promise of confronting the police peacefully. While some taunted police verbally and a few rocks were thrown, most protesters either left on their own or nonviolently submitted to arrest, with many going limp and forcing the police to carry them out.