How does RFID grab you?
I’d be very surprised if an RFID tag could be read from several miles away.
Hmmmmm, so they can make a RFID tag work over a few miles by utilising microwaves. Still no good if you live more than two miles away from where they set the drone off 
Ubiquitous - like unique, its opposite - has a very specific meaning. It means ‘present everywhere’. Something can’t be ‘more ubiquitous’. It’s either ubiquitous or it isn’t. ‘Common’ is the word they’re looking for.