This should not happen. We used dogs in Afghanistan and Iraq where it was much warmer. They had cooling vests, pre IV fluids, etc., to combat heat illnesses in dogs. There are measures that can be taken, but a caring eye is the most important tool.
That sounds more like "heat stroke" than exhaustion. Humans are subject to heat stroke also with the same symptoms, including death.
As an ex-Navy flight deck operator around the Equator, we often had the Medical types check out our status and make us drink liquids with electrolytes.
Another police incident recently said officers “and K-9” were injured by gunfire.
and this one in January:
Shot in the neck and nose. Survived.
https://www.usmarshals.gov/news/press-release/us-marshals-k-9-rocky-released-hospital
Maybe we need Chihuahuas?
It’s right about this time of the year when we are sick of the heat. When will it end. It sucks. And people have just about had it.
Training dogs to attack humans is insane NAZI crap. Oh yeah, project paperclip. Nevermind.