Sometimes in life you have to decide whether or not your moral right to accuse someone of something is outweighed by the more pressing need to be socially appropriate.
If your friend's wife had asked if you thought her nose was on the large side and you genuinely thought it looked fuhkin enormous, it might well prove socially more appropriate to play down its size rather than adhering to the truth of the matter.
And so, even with such a contentious, yet essentially trivial subject of misappropriating a free ride, it's best to maintain the social status quo and desist from voicing your opinion albeit a correct one.
If your friend's wife had asked if you thought her nose was on the large side and you genuinely thought it looked fuhkin enormous, it might well prove socially more appropriate to play down its size rather than adhering to the truth of the matter.
And so, even with such a contentious, yet essentially trivial subject of misappropriating a free ride, it's best to maintain the social status quo and desist from voicing your opinion albeit a correct one.