Try these. I have them in my personal database but have no idea where I found them:
Ocracoke Ferry Operations: 156.450 MHz, 156.675 MHz, 156.800 MHz, 156.900 MHz
Ocracoke Ferry Operations: 156.450 MHz, 156.800 MHz, 157.025 MHz, 156.675 MHz
Hatteras Inlet Ferry Operations South Dock: 156.675 MHz, 156.450 MHz, 156.800 MHz, 156.850 MHz
edit: Oh and by the way if you hear them on any of these let me know so I can update my personal list.
Draf