I'd drive to Colorado and protest along with thousands of others.
the scenario you describe won't happen: even if Hillary wins PA, KY and WV substantially, there are other states Obama will win and cancel out her PV gains. Plus there are the caucuses, so it's a weak argument. Also if FL and MI revote, I could see Obama winning MI and while FL would be close, Hillary would probably win.
if it does, there will be a floor fight: the superdelegates will have no choice but to support whoever gets the most pledged delegates: democrats don't love the Clintons THAT much.