Continuity mistake: In the scene where Ellie Mae is swimming with her animals, and the tutor comes in to meet with her, a shot shows Ellie Mae with wet hair, and in the next shot, her hair is dry.
Continuity mistake: When the Clampetts are eating at the pool table, Tyler arrives and goes to kiss Elly May's hand. She flips him over and it appears that Tyler knocks a pool cue over on his way to the ground that was propped up against a wall unit. In the next shot, it is back in its place, and no one was seen to have picked it up.
Continuity mistake: In the scene when Jethrow Bodine is sharpening pencils, there is a large bundle of unsharpened pencils on his desk. Then the secretary comes in, and hands him a bundle of unsharpened pencils; the same bundle that was on his desk.
Continuity mistake: While Drysdale is giving orders in his office, Hathaway is behind him writing. After the angle change, she is pulling the pen out of her coat, and starts to write again.
Answer: He was being sarcastic. A beat up, broken down old truck driving through Beverly Hills. The guy considered it an insult.