First off, I simply don't believe outlander.
Citing a "family emergency" is the first resort of douchebags when it comes to explaining away bad behaviour invoking sacrosanct reasons they rely on so that others may not be inclined to challenge. Every time someone tries this shit with me at work, I call them out and EVERY time they were lying!
So it does not surprise me that the cop also called bullshit on you. As will the court if you go there.
Besides, unless you are a fucking trauma surgeon what makes your immediate presence at the hospital or replying to a text message such a emergency itself? If this excuse was valid, then we would all be issued flashing lights and sirens and exemptions would be written into law.
The truth is that every time any one of US (yes me included) makes the stupid, selfish, irresponsible decision to take our eyes and MINDS off the road to reply to that URGENT text message, we could be creating a real "family tragedy" when we kill or main someone.
I have ALMOST broken this stupid smartphone in the car fixation and hope I can shake it before I run someone over. I hope the cops and society make texting and driving as vile as drinking and driving has become. Both kill people.