Oh, four day time limit? Well there goes my idea to bunker down into the hotel. Oh well, this adds a new level of drama that would be quite enjoyable. 

My character only cusses whenever he's actually angry. And given his mindset, not as often as you might think. He might say "Piss!" or "Fuck!" when something happens like he gets hurt or something, but it's more likely he say "Ow." "Damn" might get used a lot though.