You just have to slow right down. I prefer to go to the centre of the road, if clear and take two of the pads with my front wheels and leave the rear in the gap between the pads. My 2012 car has been in France all of its life, notwithstanding UK reg and I have never had any real problem with sleeping policemen, more with awake ones, when I had a 911 Turbo. The bumps at the sides of the narrow roads from intrusive tree roots are more of a problem and may have lead to the demise of my original chassis after just 4K km. The back road from La Garde Freinet direct to Vidauban is particularly bad with some vicious bumps on the edges. If I was going to keep the M3W longer, I would switch from Spax shocks to ATR shocks.
Wilson