Per "Laws of the Sea" (COLREGS 1972) this scenario is unlikely to work or rather, unlikely to work with the PLAN-Militia force being in the "right".
- Privilege (loosely read as "right of way") is pretty much on the side of the larger vessel, sailing in restricted channels.
- Burden then is on the smaller, powered vessel to steer to avoid collision while the privileged vessel maintains speed and course.
The only way to impede the USN fleet navigation is to ursurp the privilege/burden status by use of (for example) sail boats, tugs towing something or an even larger, deeper draft vessel.