'A bit more ear please!': Headscarves in France

A new BBC2 documentary: Crooked Timber:

But the image that one was left with was of the hapless headteacher stopping the Muslims one by one at the school gate, singling them out, insisting on minor adjustments to their dress (“A bit more ear please!”). Utterly, utterly humiliating for all concerned. And the women themselves, now convinced that they would never be accepted in France. One had ambitions to be a nurse, but the government has now extended the law to medical service. Petty inspection, endless argument about the tiniest details of the garb worn by “those people”: humiliating and counterproductive.

I have a hard time understanding why the French aren't getting it about this law. I'm half-tempted to go to Paris this summer and do my own inspections -- situationist parodies of the routine described above on the Paris Metro.