resq-
Billing practices and policies for EMA and SAR have been changing. In Yellowstone they have discussed billing for helo rescues for a long time. In many states, EMS responders can only charge if they transport the patient. If the patient can't afford an $800 ride, they can say "No thanks, I'll call Uber" and folks are actually doing that.
In NH, I think it has been 6? 8? years now, the state has had a fairly rational program that includes posting some of the wilderness areas. They're very up front about it: If you get caught by a surprise out of season blizzard and can't walk out...no problem. If you hike in without the right gear and get caught the same way in early January...you'll get a whopping bill for it. From what I've heard, this has been working for them.
Of course the USCG policy of "Hey, we'd rather have you call us while you're alive" and doing it all for free is nice--but there's a limit to how many organizations can spend how many hundred grand searching for the clueless folks, too.