I don't know, my grandfather works there and he said they just got there radios re programed and I know there on VHF so its possible, I listen to those to and see what I get.
It would make sense since they are heavily involved with emergencies.
The only two channels I am aware of in use by the Port of Los Angeles PD, in addition to marine channels, are Channel 1, 453.25 and Tac channel, 472.1875. Both use P25.