Yup (at least that's what I've read).
I don't understand the desire to let Oliver off the hook so quickly if he was not respecting the jacket thing, or say he's a star so he doesn't have to follow the rule, as some have implied. Yes it sounds like the coach overreacted, but anyone with kids knows that sometimes you overreact when you're frustrated with the antics of immature kids.
And if Oliver is milking his injury it makes it that much easier to understand the coach's reaction.