I've been pulled over by the French Police twice, once bringing a 1300 GT Junior back from Italy and once in a battered Vauxhall Zafira, on both occasions they never asked to see any bulbs or other requirements. Also on both occasions they escorted us off the motorway to some predesignated area with many Police waiting to greet us?
Being escorted to the next service area has happened to me twice in France though many years ago. I thought it was because I was speeding, but, in fact, they were douaniers not gendarmes (their uniforms are quite similar). After a cursory inspection the contents of my boot, I was allowed on my way.