You don't have to prohibit out of staters from fishing our waters...just don't grant their permits to hold a tournament. It used to sicken me when I was the tournament director for CT Yankee Bassmasters and even though we got our permit applications in by Oct, we were sometimes denied the dates and lakes we wanted because of the NJ. NY, and MA tourneys that were being held.
The creel should be lowered anyways with an exemption for Tourneys. That would do wonders in protecting bass from the ice harvest too.