They have obtained a 30-day permit from the GSA to be there although they cannot erect tents and must leave pathways into the building clear. They do have a tarp-covered structure where they can keep dry.
The demonstrators encourage other OE members to join them at the protest site. In addition to food and drink the occupiers would like materials to make sturdy signs and a 200-foot extension cord. Amplification is allowed at the site, as is vending.
If you are driving by on Pearl or 7th, please honk to show them your support.