Vandalism At The Supreme Court

I'm not entirely sure why anyone would want to steal letters from the nice sign on the men's room door on the ground floor of the U.S. Supreme Court, but they did.
As you can see from this picture, what used to be the men's room is now the n's room.
Perhaps Chief Justice John G. Roberts Jr., who appears to fancy himself as something of a crack detective, could look into the case.