Information Insertion at Point of Need

From the BBC: What a good ridiculously simple idea, a sticker applied to Mercedes vehicles that contains a QR code, which directs first responders to rescue methods to extract people from a specific car model.  They have put the idea into the public domain.

Reminds me of related ideas of tattooing bar codes on people for medical ID .... Not far different from RFID capsule injection, now common in veterinary applications and some human systems ...