The Qatari's are VERY busy buying all sorts of real estate in London.
They are very discreet, so the clamping will be an embarrassment to them, not really the sort of publicity they seek.
Suspect that a couple of junior members of the family will have had their ears clipped.
It's summer time, so many of the Middle Eastern community are in London because it's so much cooler & it's not Ramadan yet.