...hmmm...
1: I'd bug-home ASAP and ensure the wife and my house was secure.
2: Prepare for bugout should the situation become untenable and commence loading every magazine I have...
3: I'd see if we could seal the block off with vehicles.
4: Try to establish comms with my family (read: call them on the phone
) and ensure they were all safe.
5: If power was out, get the genset up and running. If we still have power, I'd tune in to local TV to see how our area was affected.
6: Take stock/inventory of the current level of food/water/other necessities in the house. Toidy paper especially.
... then just ride it out as best as possible...
Edit: How do I think others would react? Well... I bet (just as happens with riot situations) people will be SUPER paranoid and even people that hate guns will be begging others for them. Most people are probably less than a week from running out of food so there would be a major run on food at the grocery stores. I don't even want to think what a place like Meijers would be like... It would take a very level headed type person to corral, say, a block's worth of resources and people to get a watch going, barricades erected, and security established.