What if Baltimore was a central hub for human trafficking and the customs there was corrupt?
Diverting the ships to other (potential less corrupt) customs might hamper their operations. Just a thought.
Something else as well, the timing seems off. As far as I can tell there was very little time between the ship veering off and hitting the bridge, seems farfetched to believe people were alerted with enough time to close the bridge.
This is wild, and it's gonna rock a lot of boats.