Generally, the profs that do that are tenured, and know they do pretty much what they want to. Put it in writing and send it to the Dean of the College, requesting the work be counted as on-time. If you can include those dates of when he was late or a no-show, that would work in your favor as documentation of an issue. Good wishes! Fight for this, if you can at all. (No one else in class is having a problem?)