How hard to get to or leave work tomorrow?

Our new President, Barack Obama will be going on the Jay Leno show tomorrow, which just happens to be right across the street from where I work. I wondering how hard it will be to either get into work, leave for lunch and or leave from work tomorrow? Everyone usually lines up for the show around 1:30 - 2:00pm so I figure it won't be to hard getting to work but will be a pain in the butt to go to lunch and leave work....Geez, I hate crowds, it's going to be crazy, I wish it was my work from home day but Thur belongs to Eric....