The law pertains to all citizens, including men and non-Muslims, who may not cover their face fully in public except during established occasional events such as some carnivals or where specifically provided by law such as safety workers.
The only exceptions to a woman wearing a niqab in public will be if she is traveling in a private car or worshiping in a religious place.
I just saw a chart on how American students were ranked compared to other countries' students, and the only place the US scored first was on self esteem. The rest pretty much sucked, which I get confirmed over and over again from reading posts on this forum.
I am not French btw.