The Phantom, the Ghost who walks

The Houston Chronicle carries a bunch of comics on a daily basis. One of them is "The Phantom."

In the current storyline, he and his wife have gone down to Galveston to bid on a rare airplane. Leaving Galveston, they're flying the airplane and the Phantom says they'll follow the coast, go by New Orleans and then on down to South America.

Now, I suppose they could have left Galveston and flown up the coast past New Orleans, testing the flight worthiness of the airplane, but I think they made a huge geographical error.

Anyone else see it?