I'm interested to hear its in Dorset - I think that is under the South-Western Ambulance service.
Last Autumn an elderly relative of mine had a fall and broke her hip. 88 yr old out of doors, rural area, extreme pain, in the rain, in November. It was just lucky that a passer by spotted her and was willing to stay with her until another relative could be there.
They waited 6hrs outside in the rain for an ambulance, trying to keep her warm with quilts under a tarpaulin and umbrellas. But because she wasn't unconscious she was "low priority". I subsequently suspected it also had a lot to do with her age.
Family were told there was a series of "exceptional events" that day and assumed that is was true. Like you OP they didn't want to say she was unconscious when she wasn't, they trusted the wait was due to even more urgent cases. They were told it was a "freak event" that day.
By the time she got to hospital she was an 87yr old with hypothermia as well as the broken hip.
We subsequently discovered numerous other "freak events" of elderly people in this situation in that region. The region is either woefully under funded (quite credible) but also with a prioritisation model in which age is a negative factor.
Another time they will say she is drifting in and out of consciousness. Its not the right thing to do but nor is it right to leave an 87yr old with a broken hip out in the rain in November for 6hrs.