We used the Galveston Express Lot on our June 3rd sailing. Use the instructions that are emailed and not GPS instructions. Email said to turn onto 37th St. My GPS said to turn onto 33th St. A policeman was at 33rd St and not allowing anyone to turn there. I had to turn around and go back to 37th St.
Also, do not forget to have your QR code yo be scanned at the reader.