Sorry to side track the thread a bit. I was thinking, how the heck could a big sled get stuck going down hill and then it hit me. I've done that before on a new 07 XRS 151. Pretty sure it was driver error. The picture is just to show how a long track can actually get stuck going down hill.
But back on topic, they should have been very greatful you took the time to help their snotty rears out, when by all means your hands were prenty full being one sled down. It seems to me that less than 20% of the sledders out there are like that. Most people are not like that, which makes every sledding aventure a great time. Don't let them get you down. You set a good example, nothing more you could have done.