The funny thing about the bother and excitement of Olympic airspace infringements is that it wont be anyone here (knowing about it) that does it! I know first hand that it is expected 7-8 GA interceptions during each of the first two weeks of the games due to 'farmer Giles not knowing about the restricted zone'.
With all the hype of jets, helicopters, guns and rockets I'm sceptical that anyone will stray into places they shouldn't, and if they do they will apologise and make a reasonably quick exit. Also without knowing the contingency plans, I reckon it'd be possible to get RT approval through the zone if absolutely necessary