I think Mobile is one of those ports that does VERY well.... as long as all the stars align.
But let the boat be an hour late or the train get stalled for 20 minutes or some other small hiccup...and it all goes to pot.
Since where the folks are lining up is sooo close to I-10....if the garage does not open on time...it can be an issue very quickly.
They did allow VIP to park early. We parked at 10:30AM and boarded around 11:30am.....