It did that to me yesterday. I didn't have to power cycle, though. I just shut GPS off, then turned it back on.

It just so happens that I updated google maps yesterday as well, but I can't remember what time these two situations were, so I can't add to any speculation that it was the update that did it.

 

this happens to me every once and awhile when using parking and tracking gps apps. i have closed the program i was using and everything but the gps icon stays on. to fix it i usually open gmaps then close it a few seconds later and it takes the icon off the notification bar. i don't usually turn gps off in the settings since i use it a lot.