Its all about how you say what you want to say... Just stumping up the word "No" is never going to get you far.
As CIHY says, a response of "I am very sorry Sir, I know we used to do this, however we are not supposed to, and have all just been reminded that this can't be done any more. I will be more than happy to bring one to you as soon as we have taken off... Can I tempt you with some Champagne for the moment?" would have maybe had a better response?