OP here... Yes, I believe so... Just prior to that, controller asks if pilot desires straight in or course reversal. Pilot originally said visual was ok, but changed mind to the GPS approach after getting closer to the smoke and not seeing through it.
After the approach was cleared and frequency changed, it later became apparent that a visual could have been done, or canceled. My main points of learning are
1) What is the most common or appropriate decision to resolve this situation. and
2) Since there are circling minimums as well as straight in, not towered field, is there anything wrong with circling around and landing in visual conditions after being cleared for the straight in GPS approach? I believe Ron answered this in post 11 as acceptable.
I see. Yeah the clearance for the straight in GPS has nothing to do with a straight in landing. Two different things. In this case the pilot was free to circle. You'll hear some pilots notifying ATC of their intentions to circle at a non towered airport almost as if to get approval. They don't care. The airspace is blocked off for them. Telling ATC you'll be canceling on the ground is kinda important. Doing an IAP to one rwy, circling, then canceling on the ground will take time. Knowing that ATC can anticipate when to release a departure or clear an arrival. Still plenty of pilots just switch over after getting the clearance and don't tell ATC anything about their intentions. Nothing wrong with that.
As far as circling on the visual. Same thing. The clearance is to the airport and not a specific runway. ATC might not even see the aircraft circling on radar. If you somehow can't complete it, no big deal, you still retain your IFR until canceling. Contact ATC and try another one or do the IAP for the field.