From what I remember I thought the characters were pretty dumb, going back for the skank girlfriend who cheated on him or something? Should have left her to die. Once it got to the part where they arrived at Columbus Circle and they said "ok lets climb all the way to the top of this skyscraper, and then jump over to the next one, climb all the way down that one till we reach her apartment, of which she may not actually even be there, all the while avoided a huge scary monster..."
By that point I thought these people really deserve to die