On Google Maps app, you can save a large chunk of offline maps so you can pull it out without needing data.
Does a samsung Galaxy s5 or higher have a gps so when im walking and done trick or treating I could use it so I can go home without calling parents?
Google maps will get you home.
Quite honestly ... If you don't know the area well enough to get home without GPS, you shouldn't be trick-or-treating there.
Especially if your parents don't know where you're at.
It may not be asking for trouble - but's it's plain stupid.