No, no leaking return hose. The fuel in the trunk is not the issue it was just the sign that something was amiss. I just cleaned out the little bell shaped vent thing that runs back to the fuel tank. It was a bit clogged. I ran her around the block a few times, but still the fuel remains at the top of the filler neck. It still will not retreat. WTH?

I was wrong though about the miles I have traveled since I filled up. I just checked the trip at it reads 40 miles. But still, at about 22 mpg a too full fuel tank should not be the issue. Besides, if that were the problem I would have noticed this overflow 2 days ago.