One additional thing you might consider doing in this scenario is to active your ELT to give your exact position
Far better is the contact with D&D whose DF equipment is excellent especially if you are at a reasonable height (have a look at their leaflet which they provide free of charge). Follow D&D's instructions THEY are the experts in this field and behind the controller to whom you will be talking, have a great team of workers to cope with all the other work involved with an incident and lots of resources at their fingertips.