Yes; my last (tracked) package from MF spent about a week in NY before I received it. There have been a few other posts here reporting similar issues...
There was a post with links to an F.A.Q. (or something similar) about how long the ISC has to process a package and procedures for & experiences with trying to contact them. Post wasn't too long ago.
EDIT - here it is. See the link at this linked post.