I'm probably at a Level 4 - My preps are not quite at Apocalyptic Level (Can you really prepare for that without losing quality of everyday life?). My preps are robust and i am securely at around the 90 day self sufficiency mark... Beyond that my skills will have to come into effect.
For me though, as long as my residence survives the initial event, then it comes down to time, endurance and the desperation of others.