Same thing happened to me. Just as I hit the hive, I ran out of fuel, loader full of dirt. I waited until well after dark, but they never went into the hive. Snuck out early the next morning, they were still angry and apparently are early risers. Held my breath and fueled up the tractor and got it out. I drove about 200 feet or so and parked it. Came home from work that day and went to put the tractor away, and there they were, still flying around/in the dirt that was in my bucket. They stung me twice, kinda made me want to call my mom, I didn't though. I stayed away for the rest of the year, don't like killing stuff if I don't have to. Yup, the yellow jackets won, however by the next spring they had moved on and I was able to finish that trail.