I'm pretty sure the professor has to get his/her syllabus approved before the semester begins. At least that's how it was at my college.
We had one professor that was obviously PMS driven. She did some crazy stuff. We collectively reported her to the Dean. We were taken very seriously (Honors course, so that probably helped).
We held a meeting between the entire class, the professor and administrators and hammered out our problems.
She didn't eff up anymore after that.
I wish I could recall exactly what kind of crap she was pulling that made us report her.
Your situation doesn't seem too bad, IMO. I had a bunch of classes like that.
