Re: Nagging worries...
"what makes you think that if you can't get to the hospital, "
In most snowy situations in the UK, roads are blocked not by snow but by ill-prepared vehicles and/or drivers. Much the same goes for floods, as has been seen in several parts of the UK not long ago.
Emergency services (and the other folks that help out when things get bad, as has happened recently in the UK) frequently have bad weather plans, skills, and equipment. These have a much better chance of working OK without excessive risk if dumb people don't set out unprepared on journeys they don't need to do, and then end up blocking other more important folks when they abandon their unnecessary journeys.
Other folks delayed or blocked in such circumstances include not just the emergency services, but gritting wagons, and such.
"already so overloaded with calls that you are just background radiation?"
They might be. They might not be. If genuine emergency calls can't get through because of people chatting about last night's Corrie, or even justifiably whinging about the incompetence of the Highways Agency ...
The emergency services cannot help those who they are unaware of. They cannot prioritise what they are unaware of.
Have YOU really thought this through?