WOW, a completly unintentional non event has degenarated into the old Yank's against the Limey's thing. So many delect people out there.
I can guarantee that if it had been the anyone elses flag, no one in the States would have cared, as most have absolutely no respect for foreign flags and in many little for their own.
Check out the flag raising and anthem at Nascar race and just see how many leave their baseball caps on and see how many "celebrates" make a total balls up of the national anthem yet still get cheers.