Whilst I completely respect the rules of the site and the legal standpoint, there is nothing ethically wrong with what he suggested; its a bit of fun, and there are some great hits in those boxes.
He was open, honest and clear about the proposition. If the rules/laws were different, there's nothing wrong with what he put together.
For $14 (two beers at the pub, which I'm sure none of you would think twice about), I probably would have had a crack at it.