might not quite work

I saw this Labyrinth comic that shows Sarah using GPS on her phone to find where the castle is. It's fun and the title "Suck it, Jareth" made me laugh. But...I feel like it kind of misses the point that as soon as Jareth found out about GPS, he'd probably find a way to either mess with the GPS itself or have the Labyrinth actually change while a person was walking through it. I do enjoy the idea of a person using their GPS while going through the Labyrinth, and the route changing every few minutes. Also, the concept of the Labyrinth having an address that allows it to appear in a computer system.