Then take a cheap cab ride to the port from there. It would probably be a lot less expensive than paying for parking. then do the reverse when you return or Dollar rental car is even cheaper but their office is near the MIA airport which is quite a bit further from the port but they do offer a free shuttle.
Charlie Brown is the main character in the comic strip, Peanuts.
William Hill Brown (1765-1793) was an American poet, dramatist and novelist who anonymously published The Power of Sympathy, considered to be the first American novel. The son of a prominent clockmaker, Brown received his education at a Boston boy's school. His literary spark and encouragement came from his step-aunt, Catherine Byles.