The Tea Party as a movement doesn't exist anymore. It's been co-opted by the Republican party and is unlikely to do anything illegal in the event they lose an election.
Watch out for Occupy if Obama loses, though.
From my experience, Occupy doesn't exactly view Obama as the great champion of their causes. They see him, again from my experience, as only slightly less bad than Romney.
True, but Romney is the definition of the "Plutocrat candidate" they hate so much. I see them going nuts less over Obama losing and more over Romney winning.