As an interesting parallel to all of the above, Texas and Oklahoma have reciprocal agreements with respect to carrying concealed handguns. If you drive from Dallas 90 or so miles to, say, Durant, in order to play in the Choctaw Casino, it is unclear when, where, or if Federal Highway 75 ever crosses reservation land. Certainly, once you go to the casino you are on Indian land. So I can't begin to guess if I violate tribal law on the short piece of 75 that takes me to Chictaw Casino - and I know guns are barred at the casino. So let's skip that. Let's expand that to Tulsa.

That is nearly a 4 hour drive and part of that drive in Oklahoma is on an interesting but somewhat desolate highway called the Indian Nation Turnpike with signs indicating that you are in the Cherokee Nation. (I think; could be Chickasaw). The Oklahoma Highway Patrol patrols that highway.

Whose laws are enforced on the turnpike, Oklahoma's or the local Indian nation?