I called and said what had happened and within a short time we had police, ambulance and a fire person show up (I guess they were all bored).
IMO that's part of the problem in US policing: The assumption is that the people are bad (in my case that I had hit my wife I guess - I was interviewed by the cops before she was taken to hospital for a checkup). I called 911 for a medical emergency, not a criminal issue so why do cops have to come and treat me like a criminal. If you think that something is wrong then you find a way to find something wrong.
I wrote a blog about US policing a few years ago because I feared for my son's safety: https://medium.com/@sanjiva.weerawarana/police-in-us-need-to....