I'm sorry Cindy, but if you're looking for provocative ways to protest an unjust war, you'll have to think very hard before you can come up with something new. Getting arrested for sitting on a sidewalk will not make you a martyr. Unless you can find a way to top this:
you'll just be imitating the great protests of the 1960s. Better luck next time. Perhaps the anti-war advocates are waiting for the price of gas to go down before they try self-immolation.