Most of the buses seem to have returned to 1PP, except one or two corrections buses which may have just been circling the block again.
I have some really bad camera phone videos here and here ; audio broke because my phone got soaked. Been meaning to get a new camera!
For some more context on this area, which includes residential buildings but has been effectively a giant police compound for the past decade, making it very difficult to travel north from below the Brooklyn Bridge, see this Gothamist article and this nytimes article.