I have been stopped twice in France by the police. Each time all they looked at was my passport, D/L insurance and V5. Looked in the back of the van too (but I was at the first toll area from Spain into France) so maybe looking for people??
In Spain I have been stopped a few times too. Not been interested in anything to with the van or my paperwork, but have been random drink drive checks. Never once has anyone looked for my hi vis, spare bulbs, headlight benders, stickers etc. Good job really as I have no spare bulbs and as there are no markers on the headlight glass, I have no idea where to put the stickers, so the packet just sits in my glove box!
I got stop and ticketed 2 years ago in Spain too. All he wanted was my D/L and credit card. What idiot would contravene a no left turn sign when being followed by the Guardia Traffico?