There must be something in the water there because we had eggs thrown at us from an upper floor apartment walking down some sidewalk in Paris (I guess our speaking English to one another was offensive?). We always spoke French when interacting with francophones. Visiting the more rural places in France was pleasant though, and the people were more friendly.
Were you in Paris? Seriously, we had no problems anywhere else we went. It was just Paris. We visited Nice, Lyons, and Toulouse on our trip and had lots more fun in those places.