So you run over the bank into the forest and are badly injured. Well Tony then you will probably die. But if you blew a tire and needed a jack then a simple help sign would get somebody to help you.
Last summer on a trip out from alaska I hit a Bison. My emergency communications were with AAA road service. I spent a week in Fort Nelson. this year I brought along a laptop for the Wifi. Now I am covered for communication with homebase (spouse)
Oh Tony try your Delorme SE at about 10 mile Haines highway where there is no gps coverage and then what would you do?