Rig it up, and down you come, to the amazement of the rescue people who were planning to run ladders up to your lines and cut them. Rig a Munter hitch at that point if you think you will have trouble holding the descending weight. Sometimes a simple wrap around a tree or your body provides enough friction. The minimum gear is not expensive and anyone who flies near trees should carry it, practice the Munter hitch, and have a rescue rope in the car of at least one person at the site. To ensure that one is always available to you, put one in your car and do not fly alone, and do not fly without a radio and reachable spare batteries.
Batteries wear out fast when rescue operations require more than the usual amount of chatter.
At a tree infested site go over the what-if situations before you fly. Next is what I consider the minimum list of items for tree rescue. Add to it as you are able. Radio and spare batteries 2. Eight-foot nylon loop 4.