At the very begining of the film Trinity is in room 303 of the Heart 'O The City Hotel. When she realises that she has been traced she needs an exit. She is told how to find one, and this involoves much running over rooftops and suchlike. However at the end of the film when Neo needs an exit, he is directed back to room 303. Is there an exit there or not? There obviously is, because Neo uses it. But why did trinity not use it at the begining?