Sounds familiar: according to my GPS I passed within 10m of it, above, and came out on the path, which I assumed was the one on the map, turned away and ...
Snap. Luckily for me it didn't spoil a good run, as I was already being rubbish.
Luckily for me I was also "being rubbish" and had already binned 3-4mins.
Luckily, I didn't go. ;-)