Anyone ride through the 1st Ave tunnel by the UN?

For two years I've been going by the UN, but when the UN was in
session a few weeks ago I went through the tunnel. I rode the right
(eastern) tube. Very fast, mostly because I was scared ****less of
being hit from behind by a car.

I keep my blinkies on and go through after the light has turned red
behind the tunnel, hoping that there won't be any cars when I'm in
there. Near the end it widens and then it's ok.