Tip one Arrive on D Day, every Gendarme in the country, and his dog were in Ouistreham.
Tip two Drive a Peugeot
Tip three Tow a caravan
and spend the dosh on booze not fines
Le Plod de Vitesse Francaise had one of these new speed guns, that looks like a pair of binoculars, on the Argentan Bypass, otherwise no sign of them