Ok, this makes me feel better

"Two Swedes expecting the golden beaches of the Italian island of Capri got a shock when tourist officials told them they were 650 km (400 miles) off course in the northern town of Carpi, after mistyping the name in their GPS."

Source.

Recently while in LA, and trying to go to the shops at The Grove, with directions provided by my iPhone maps, I ended up taking us to The Grove apartments. But that was like four blocks, not 400 miles off course.

Vindication! What a kick! :)