Interesting. I would have thought that the Savannah warehouse was all they need there. The freight company I worked for on the west coast (unrelated to Tradition or APSI) had a warehouse a few miles from the port, and drove containers in and out of the port to/from the ocean carrier docks and ships, but didn't actually have facilities directly within the port itself.
It's possible this is just a form of marketing, and doesn't specifically mean they have facilities other than the Savannah warehouse, but I don't know for sure.