My phone has ICE-bike, ICE-family, ICE-boss, ICE-neighbor, etc.

If I conk out on a group ride I hope somebody will call family (across the country) for medical permissions, call my bike buddy to get my bike home, and share the other ICE numbers so somebody will let my boss know I'll miss work, call the neighbor to feed my cat, etc.

I also have health insurance card/driver's license in the wallet I carry on rides.