Final update on my mama goose...the snake came back and took the second to last egg, and that left the one. She sat on it and sat on it, until it finally broke open. It was a solid yellow mass that looked like a yolk when you hard boil it. She now stands and looks at the nest and then leaves for a while, comes back and looks and then leaves again...wash rinse repeat.
Hoping that she will try again at some point and that I can get her a better nesting spot (that she will use) instead of her going to a crazy spot again.