Heard there's an American Airline ticket counter at the Miami Pier and that your luggage can be checked in there. Does anyone know much about this? My flight leaving MIA doesn't leave till 7 that evening and don't really feel like carrying my luggage around Miami. Are there any time restrictions to check in your luggage? Also, does anyone know how much cabs costs going from the Pier to South Beach and then back to MIA airport? Any thoughts appreciated.