A sincere question: Did you attempt to speak any French?
To me Paresians are comparable with New Yorkers. They're busy and don't have a ton of time for your crap, but I have only very rarely (probably less than 5 times total) seen a Paresian be outright rude to someone who was speaking or trying to speak French, and I've probably observed literally hundreds of thousands of interactions if not more between Paresians and tourists.
Now if you expected them to fall at your feet (even if you were or were trying to speak French) no doubt you were disappointed, but why should they? The have lives. Again, very like the vibe in NYC in my own experience.
Also worth noting that, especially outside Paris but sometimes also inside it, a lot of French people don't speak good English. If they are looking at you like they don't know what you're saying, chances are they probably don't. That's not rude on their part, that's reality.