I can't see how they can go to tribal court as it has no jurisdiction over the State. If it did, then the State would be subservient to the Tribe. Co-Management assumes equality. If the State has to be subject to Tribal Court they aren't Co-Managers but just stakeholders reliant on the Tribes' good will.

If memory serves, the option of going to Tribal Court was for the State to give up prosecuting Tribal members who violated both State and Tribal rules. Which os why, for example, they handled the crab poaching prosecutions.