Choctaw Durant partial waiver of tort-claim immunity

I was at Choctaw Casino & Resort in Durant, Oklahoma yesterday. When I cashed out my chips (up $400. Woohoo!!), I noticed a legal notice pamphlet at the cashier's cage. Apparently the tribe has partially waived their immunity from legal action brought against them in non-tribal courts. I did not see a similar document when I was at WinStar earlier in the evening, but maybe I missed it (that place is massive!). Does anyone know what the Choctaws are doing here? Is it just a goodwill gesture? Do they receive some benefit from the decision?

You should read the waiver to be sure, but it probably gives the player access to local NON-tribal courts in matters involving the parking lot, motor vehicles or vendors who supply products to the casino. Its sort of a way of saying "We remain a sovereign Indian tribe but as a matter of convenience we agree not to assert that claim in a local court of law under certain conditions".

I did take a copy of the notice. I might try the photo-to-PDF feature on my phone and post the notice here later.