Washington ( CNN ) -- Occupy DC demonstrators spent Sunday afternoon discussing how to respond to a call by the National Park Service to stop camping overnight at sites a few blocks from the White House . The park service notified protesters on Friday that they `` may be subject to arrest and their property subject to seizure as evidence '' if there are evident `` camping violations '' by around noon Monday . The notice for those in McPherson Square and nearby Freedom Plaza said that to comply with the federal agency 's camping regulations , demonstrators must remove all camping material from the sites and leave one side of all temporary structures open at all times . Authorities describe the purpose of the order as necessary to ensure public health and safety . Oakland cleans up after `` Occupy '' clash . Video posted online from early Sunday showed a man appearing to walk away from U.S. Park Police members as he yelled out , `` I have done nothing wrong . '' Two officers tried to grab him before a third officer used a stun gun on the man , who was then handcuffed . A CNN crew witnessed the arrest , which protesters said came after the man went from tent to tent removing notices posted by the National Park Service . There was no immediate comment from park police on the incident , including whether the man was charged . Later in the day , a small group of protesters met for about three hours under the statue of Civil War hero Maj. Gen. James McPherson , which is in the middle of the park . A protester named Eli -- who would only give his first name , and who was n't participating in the meeting -- said one of the ideas being mulled if Monday 's deadline were imposed would be to hold a `` sleep strike , '' in which demonstrators would play board games and do other things throughout the nights to avoid the `` sleeping activities '' banned by the Park Service . `` I plan on not leaving and not sleeping as long as possible , '' Eli said . Pastor Brian Merritt of Washington 's Palisades Community Church said area churches have discussed helping house some of the protesters overnight so that they could continue a 24-hour vigil if park police began enforcing the rules against overnight encampments . Rich Coffman , a Dallas , Texas , resident who has been camping in the Washington park for three weeks , said demonstrators from Memphis and Nashville , Tennessee , and New York are expected to come Monday to show solidarity with the capital demonstrators . Whatever happens with the camps and police , Caty McClure said it would not alter her and fellow demonstrators ' commitment to their cause or their activism . `` The park and the occupation of the park is a tactic , it 's not the movement , '' she said , calling the camps `` a really important symbolic statement . '' `` If we ca n't sleep here , that does not end the movement . '' Occupy DC is part of a larger activist surge that began last year in New York and quickly spread . While the protesters have highlighted a number of causes , the overarching theme has remained largely the same : populist anger over what activists portray as an out-of-touch corporate , financial and political elite . Demonstrators in Washington have been camping out in McPherson Square since the beginning of October . There was a daylong confrontation December 4 when protesters erected a wood structure overnight . It was eventually removed , after being deemed unsafe . On Saturday , some of them made noise -- and generated headlines -- in Washington outside the 99th annual Alfalfa Club dinner thrown for high-level dignitaries , including President Obama . As guests arrived , they were forced to pass through Occupy protesters . While police assisted attendees , demonstrators began throwing glitter . Sen. Joe Lieberman , I-Connecticut , and other guests accompanying him were among those who were doused with the glitter . CNN 's Courtney Battle contributed to this report .
NEW : A protester says , `` If we ca n't sleep here , that does not end the movement '' The National Park Service warned protesters they may be arrested for `` camping violations '' Area churches may house activists overnight , a pastor says . Video shows a stun gun used on a man after he took down Park Service notices from tents .