No "alarm"or report of a missing pilgrim, especially a woman walking solo, should ever be discounted or taken lightly. I am thrilled the Guardia Civil learned a lesson last year and pounced on this initial report, and more thrilled that the missing pilgrim turned up safe and sound.
This emphasizes the need to keep your loved ones at home advised regarding your planned itinerary while on Camino. If you change that itinerary or contact schedule, you really must let the others who care about you know what you are doing. This also applies if you are doing the Camino with others, but are separated due to pacing differences, or other legitimate reasons for being separated by days or more.
Yes, I know it can be an inconvenience, and bothersome at times. Then again, put yourself in their position, hundreds or thousands of kilometers away, or on the other side of the globe (literally), and unable to help you if something bad does happen. Do, please be considerate of others, espeically those who care most about you.
I have an app for my iPhone called "Alert Cops," available through the Spanish iTunes site. It allows you to register your presence in Spain and your itinerary with the Guardia Civil. I presume, but do not know if it is available for the Android OS. It also supports rapid reporting of incidents and crimes you see, in real time. However, it is NOT a substitute for dialing 112 and asking for "Ayuda por favor en inglés?"
I found the app on the Apple (US) web site. Here is that URL:
https://itunes.apple.com/us/app/alertcops/id897454254?mt=8 just as an FYI, the app supports these languages: English, Basque, Catalan, Galician, and of course, Spanish.
I hope this helps.