Could be, or maybe it was like the case several years ago. A family in ca or Oregon (I forget) let the gps take them up a dirt road in the mountains. It would have been a perfectly good choice in the summer. But they made the trip in the winter. Got stuck in the snow. I dont remember if someone walked out but the rest died, or if the ones that stayed in the car lived and the walker died, or what. I think I remember it was a guy who did something for CNet.
Several years ago a bus was driving thru the seattle area (I think it was seattle) just following the gps. He was watching the gps and didnt notice that the overpass he went under was too low for the bus. Took off the top of the bus. Lucky for him he was going pretty slow at the time.