Easiest Parking: Park On Street At Gateway Lofts (700 W Trade) Pay To Park Is $1.6 Per Hr. Walk Into (700 W Trade) Elevator Lobby, Go To Floor 4 (Ladybugs). Walk Through Parking Deck Doors, Make Left. Walk Towards The Staircase And Locate Blackbox On Wall By The Staircase. Lockbox Will Have Gold Sticker And Green Tape Labeled "502". Behind Staircase, You'll See Short Bridge That Connects Over To Gateway Plaza (Key-Fob Takes You Down To 3Rd Floor Of Gateway Plaza). Follow Hall To Elevator, Got To Level 5 To Reach 502. When You Return The Keys, Take Elevator To Floor 3, Walk To Back To The Short Bridge Back To Level 4 Of The Parking Deck.