Did they forget about the wildfires they had there the past couple of years where they had to evacuate completely, and ZLA had to handle SoCal? Also about when ZLA had to evacuate Palmdale and ZOA and ZAB had to extend their airspace to cover ZLA?
This is nothing they haven't been through before, and 3 hours seems like a walk in the park compared to almost having the place burn down, and seeing FIM VOR a burning pile of rubble!
BL.