So looking through all the buildings and decos available in the map editor I came across a few different things, Military Parades, Protesters, sentries(the military guards) and... Santa...
My question is, I see a point to all of those above expect Santa.
The parade takes over a street for a while, Protesters cause a hold up in traffic, Sentries are just details to military bases. But Santa seems out of place, I can only assume he's just extra detail and nothing more, but I feel like he must do something special, right?