Did you seriously say you had a 10 HOUR ORAL?!?! I've never heard of anything more than 5 for a CFI, and most pilots I know took theirs in OKC.
What a complete a$$ bag. Where are you taking this? This just sounds absolutely ridiculous. Almost sounds like he was looking for a reason to fail you and stuck to his "superiority" and in the process made you feel like a POS.
I'd go back and finish the job, but I'd take the AFH with you, and if he pulls that crap again I'd make your point and ask if the book is wrong.