The last winter olympics in Vancouver/Whistler practically shut down or limited a lot of operations to most local companies and flying schools for I think it was about 3 months. I was trying to take my IFR at the time and pretty much gave up taking it locally. Some schools tried to move out of the restricted area but I think some just gave up all together. Helicopters companies took the worst of it. All flights had to have proper airport security and passenger manifest approved either 24 or 48 hrs in advance. If you deviated off flight plan the military will be on you fairly quick. So originally a lot of businesses had big plans to gain from the olympics not only aviation businesses when in fact a lot where far worse off with the olympics than with out. There were basically only 2 Heli companies that benefited from the olympics while the rest had pretty tough time to work locally. I am not sure if there was any compensation to local businesses but there should of been. Cost a lot to have aircraft sitting around plus the loss of business. Good Luck to all