I expect the Occupy/BLM type to raise some hell in the event of a Trump win. Similar to the current nonsense they're doing. Blocking traffic, "occupying" various structures/parks/places etc. Just being mostly a nuisance, and of course, seeing it as an opportunity to loot.
The exception I think would be in the event of a split between the popular/electoral college that goes in Trumps favor. I imagine in that scenario we'll see the similar, but ramped up a bit more.
The media of course will provide 24/7 coverage as "breaking news" in an attempt to garner ratings.
Most of the rest of the country will shrug their shoulders and go back to work the next day.