Does anyone know how Sixt enforces this limitation? I'm looking a rental from DFW and will drive to West Memphis, AR to meet some family which is in "Allowed" list.

I would like to also visit Graceland, which is in TN side of the river. I have my own LDW so no problems in case of any accident, but wouldn't want to face $.5 per mile charge. Do they have GPS with tracking in cars or what?

Normally I would just go with another company but Sixt wants ~500USD for 2week rental where others are asking ~900USD (prices are skyhigh in late March for some reason???)