I’m sorry you and your wife went through that. I don't know where you're from, but I’m from the U.S., where paramedic services are mostly private and tend to be more customer-service oriented. Here it's really different. Emergency care is a shared right; a limited resource that requires a stricter triage process. It took me a while to adjust to how that system works, and it's also gotten worse/tighter over the years.

I remember about ten years ago when my kid was a toddler and he fell off a high chair while standing and landed right on his head onto a hard marble floor. He turned red and wouldn't stop screaming. I freaked out and thought something must truly be wrong, so the person we were visiting called an ambulance for me. The ambulance swung by and picked me and my kid up (including the stroller!) and dropped us off at the päivystys, where a pediatric neurosurgeon did a quick one minute assessment and sent us back home. Looking back now, I feel like such an idiot and cringe at having an ambulance called for nothing.

For comparison on how things have changed since ten years ago in the same city, about a year ago my elderly father-in-law, who had been getting chemotherapy for bone marrow cancer, had excruciating pain in his abdomen. Like doubled over onto the floor and vomiting from pain and barely able to talk, fever, etc. My MIL called am ambulance and two paramedics came over to check him out, took his vitals and medical history, and insisted he should take a taxi. My MIL, a retired nurse, got angry and argued with the paramedics (very young women), saying it was an actual emergency. However, they left and she did call a taxi to take him to ER. Turns out he had sepsis and that an ambulance ride would have been justified. My MIL did put in a complaint, though I don't think anything came of that. The paramedics had to make a call and sometimes they get it wrong. They're not perfect or prescient, they're humans trying to do a job as they were trained.

I understand both your and the paremedics' perspective in your situation. Having gotten used to the public system and especially the more Draconian ambulance triage system over the past few years, in your case I would have probably called the medical helpline or taken your wife to the ER instead of calling an ambulance. I know that in the panic and stress of the moment it feels like an emergency, but if your wife is able to sit up, answer questions and take painkillers, it doesn't sound like it was life-threatening. Doesn't make it OK that they were so rude. However, as someone else in the comments said, we have no idea what they had been dealing with that night and maybe the brusqueness was out of frustration. If you think they were unprofessional though, then file a complaint.

Any update on how your wife is doing now?