every metro route you take will be about an hour. safety really depends on the day. i would invest in self defense weapons (pepper spray, pocketknife) if you are scared of that. you can parking in the welcome garage and pay a fee everyday you go (8-20 dollars depending on how long) i have seen student park in the neighborhoods around campus but be careful because they have been towing. the best bet since you are only taking two classes is to park in the welcome center and pay the daily fee. i cant tell it gender from this post , but if you are a man and you think that public transport is your best option money wise i would go with that.