Scuttlebutt around the department is that Wilcox's student evaluations on his classes are abysmal. No surprise, given how combative he is. He doesn't suffer fools gladly, and he thinks everyone is a fool. You can use that.
"Sure, I have plans," you say. "For instance, I have two classes to prepare."
"Exactly the kind of thing I can help with."
"But your student evaluations are poor, aren't they?"
"Of course they are. I hold students to a high standard and they resent it. Besides, student evaluations aren't the ne plus ultra of a class's success."
He's not taking this the way you'd hoped. "No, but they matter."
"What matters is knowledgeable feedback from a—not peer, let's say 'more experienced colleague.'"
That supercilious jerky jerk. "I don't think that's necessary."
"I do. I look forward to reviewing your class preparations."
Great.