Didn't this flight come from Canada and weren't US CBP agents there to meet the plane at KTEB upon arrival? I believe there was some sort of associated hours long delay at KTEB due to the pot.
Frankly couldn't care less but sure hope this incident didn't inconvenience anyone else that day.
Back in my jet charter days I was taking some Hollywood types to Hawaii one day but they were thoughtful enough to ask: "Dude...is it cool if we smoke some weed?" or some such thing. I said "not cool" and that was that.