Wow....ok, maybe if you are cruising.
When you check in you will see a sign to the left of the desk stating that there is paid parking available. I didn't pursue it because we had no car with us. Perhaps it is a deal worked out with the port.
Goodness knows that the port can use all the help it can get.
Use the elevator on the right. The left one is held together with duct tape and gets stuck.
Horton Plaza is 4 short blocks away for good eats.