They may be changing next year. The plan is to be able to put points on a British licence. I think it will first come into use in Northern France. Dont quote me and this and im sure someone may have the exact answer but, its been on the cards for a while. I drive in France alot and its the only time I really get to open up on the roads, being a rep is not easy on your licence. But until then, yeah give them a good pose in your way through a camera.
Dont be fooled though. The French coppers are getting very sneaker and more mobile units are being used. Just watch for the people on the otherside of the roads flashing you to let you know of a camera up ahead, (there good with doing that over there).
One last thing. If you do get pulled by a car. The standard fine is 90 euro. If you do not have this in cash, they will escort you to the nearest cash machine!