On the bright side, at least you knew it was French.
On one occasion I tried to order something from the menu in a Paris restaurant. I was using my French which I really did take in undergraduate college.
The waiter said, "Please do not crucify our language" and he wasn't very sweet about it.
So, I kinda ordered in english while pointing to the menu, but I guarantee you that I didn't overtip him. It kinda pissed me off.