I broke AND sprained my ankle on slick rock in Yosemite. I decided to try to hike out when a horse train of campers came by and the leader agreed to take my pack. It would have been a really bad idea, except after a 1,000 foot climb over a few miles I ran into a ranger leading a horse (!!!). I said, someone sent you! She said, no, I’m just heading home. Anyway, she asked if I was requesting help and I said “damn sure!” . She put me on her empty horse and took me back to Vogelsang, where another ranger had been alerted at Tuolumne and rode up to meet me with yet another horse in tow. After some hours I was back at my car. I drove to the hospital at Mammoth.
My cost? Zero. I thank the rangers whose day was wrecked by my emergency all the time. It was a seven hour ride up and back for the ranger at Tuolumne, maybe longer. His day was ending when he got the alert.