Is this an effective way to protest?

Below is part of an article from THE HILL. I am posting it to ask you whether you think it effective to protest the President when he is not at the White House but in Martha’s Vineyard.

Arrests continue at White House oil pipeline protest
By Ben Geman – 08/21/11
U.S. Park Police arrested another 45 environmentalists near the White House Sunday, the second day of a two-week demonstration urging President Obama to block a proposed pipeline that would greatly expand imports from Canada’s oil sands projects.

Police say 110 people over two days have been peacefully arrested after engaging in civil disobedience in front of the fence north of the White House.

The activists want President Obama to reject TransCanada’s proposed $7 billion, 1,700-mile pipeline to bring up to 900,000 barrels per day from Alberta to refineries in Texas.
The project is currently under State Department review and the administration plans to make a final decision by the end of the year….”