It is definitely convenient to stitch together multiple frames to generate a panorama in post production, but on this day, I really should have had a polarizing filter with me. Frankly, I'm usually too lazy to chuck one in my bag as I go out to shoot. You can simulate the effect of many filters using software, but correcting the sky on this image would take a little bit of effort, and probably not be worth it. It might be easier to return to the scene and start from scratch. That kind of reinforces the lazy habit.
Fortunately, the other images from this particular shoot were made on a 6x17 pinhole camera. They turned out just fine.