It seems we hear a lot of these kinds of stories today. I don't have a GPS system in my vehicle, so I really can't relate, but I guess people kind of get dependent on them when they are in unfamiliar territory. The problem comes when we depend entirely on them when our eyes should tell us that there is a lake in front of us.
There is a parable in this story, of course. Since the beginning of Creation, mankind has been depending on the wrong things for guidance. God gave one set of instructions, but Adam and Eve followed the GPS system of Satan--Gullible Prompting of Satan. And we're still doing it today. There are people who are lost and wandering around in the midnight of their lives where it is dark and confusing. Instead of listening to the voice of the Holy Spirit prompting, guiding and directing, they follow their own defective guidance systems--and wind up in the swamp.
And, as you would expect, the Bible has something to say about this. Consider Psalm 25:4-5, which read, "Show me your ways, O Lord, teach me your paths; guide me in your truth and teach me, for you are God my Savior, and my hope is in you all day long." Psalm 48:14 tells us "For this is God our God for ever and ever; he will be our guide even to the end." Proverbs tells us that we should listen to the words of God, for "when you walk, they will guide you" (Proverbs 6:22). And Isaiah 58:11 promises "The Lord will guide you always…."
So don't wind up in the swamp of confusion and desperation! Keep your eyes on the Lord, not the systems of the world which promise much but deliver little. He will keep us on the right--and dry--path.