You Don't Have to Go Home (But You Can't Stay Here)
Communications Manager Patrick von Keyserling says this rule is not a response to the Occupy protesters, but rather is meant to protect their safety and health (a rather Orwellian description).
It is also meant to address illegal nighttime activity in dimly lit, sparsely populated areas. It's easier to stop all parks and open space usage at night than to just enforce existing laws.
However, my biggest issue with the proposal isn't its questionable justification. It's the legitimacy of the process being followed.