Last hours in Paris

Yesterday was my last morning in Paris. I was somewhat sad to leave, I can't lie, despite the fact my bank card feels raped, it really is an awesome city. I also encountered my first rude Parisian. See, I feel as though the kind dwellers of Paris get a really bad rep, and maybe this reputation just gets spun out like crazy by everyone elsewhere. My father being a strong believer that there are french people and then there are Parisians. I was finding the latter to be very nice and helpful. This was however until I met this ticket seller in Gare du Nord metro.

Seller: Don't give me 20 euro, I only have coins to give you change with
Me: Madame, I apologise but all I have is this 20 euro note
Seller: I don't care. Use your credit card.
Me: pulls out mastercard. Instantly gets denied in the machine
Seller: I bet you did it wrong do it like this
*card gets denied again*
Seller: wtf is wrong with your card
Me: this is why I need to pay with cash Madame

I was already really late to meet some friends at this point and stressed/tired under the 10kg+ of luggage on my back. So I did the unthinkable. I accidentally "Tutoyé"[d] her. Blog readers who don't know French, that means I accidentally stopped using the massively polite second person form of address and used the more colloquial one.
 
I should have said, since she was a particular bitch:

« Avez-vous des pièces madame? » (have you got any spare change in coins?)

Instead what came out of my mouth was this. Reserved for only people you know.

« As-tu des pièces? »

She went completely ballistic:
« C'EST QUOI ÇA?! qu'est-ce que vous avez dit mademoiselle? QU'EST-CE QUE VOUS AVEZ DIT?! JE NE SUIS PAS VOTRE AMIE. NE ME TUTOYEZ PAS »
(WHAT?! what did you say miss? WHAT DID YOU SAY. I AM NOT YOUR FRIEND. YOU CANNOT BE SO FAMILIAR WHEN YOU TALK)

I apologised profusely. Maybe if I had more than 2hrs sleep the night before I would have been able to avoid this mistake, one that I stopped making when I was about 16. I clearly messed with the wrong bitch. She finally gave me my ticket after berating me for over 10 minutes plus I suspect having a wank under the table since she ignored me part of the time and I didn't see her hands...

Walking away, I was sad I didn't throw the last word at her.
"Oui madame, vous avez raison. Vous n'êtes pas mon amie car mes amis ne sont pas aussi moches que vous, salope"

Google translate that one if you need to - it may not come out stellar. I think this may be one of my sincerest regrets in not getting the last word.