This is no bueno. I had no issues watching it while in KC because I bought my Fire Stick with me, but the fact I might not be able to watch while at the airport or something is enough to make me want to switch and give Sling a try.
No sweat.
I think you just have to finish out your monthly billing cycle and then you can cancel your subscription. Check out that link I gave for instructions on how to cancel your PS Vue.