The Ferdinand image is charming, amielynn. The world needs more Ferdinands.
From your description, it sounds like the class format is too rigid for your DS. My personal bias is against seat work for young children. I would also be concerned about your son being urged to conform to a social identity that doesn't match his temperament.
How does your son like sports? I find sports are a great social equalizer and can bring together children with a broad range of interests and temperaments. Would he be comfortable bringing some equipment to school, like a soccer ball, and leading the play? If not, then scratch that idea!
ETA: I should add that I think it's perfectly fine for him to just sit back and relax at recess if that's his preference.
