Fortunately for the Occupy Wall Street protesters in NYC, the privately owned Zuccotti Park is open 24 hours a day, unlike city-owned parks that are usually closed in the late night to early morning hours. However, in city and state-owned parks occupied by protesters throughout the country, authorities are using park curfews to their advantage. Just after 3am on the morning of Friday, October 14, Denver police raided the Occupy Denver encampment citing an 11pm to 5am curfew at state parks, making at least 21 arrests. A similar 11pm curfew in Iowa led to 32 arrests on October 9. The same thing happened at Occupy Sacramento.