Rod moved quickly and threw the closet aside to assess the damage to the window. Looks like it bent the frame a little, too. Dang!
We were going to get rid of the closet, anyway. As part of our "refurbishing" we got rid of a bunch of "stuff" we didn't really need anymore, and the closet was one of the items.
I got out the utility knife and started cutting cardboard to cover the broken areas to keep the heat out.