I also use an app called "Eat. Sleep. Ride." It's a ride tracker, and others can also follow your progress, but also has crash detection that you can purchase an annual subscription for, Crashlight they call it. You pre-set contacts and if it detects a crash an alarm goes off on the app and you have XX seconds (I think it's 20) to hit an "I'm ok" button. Otherwise it'll send a crash detection notification to your preset contacts and also include your precise location so they can alert emergency services. I'll probably subscribe to it if only for the purpose of the trip out to the rally. Should help ease they SO's anxieties.