It would be interesting to see it play out at that scale. For example, what are people in the rural areas seeing? How much do the police or government know at various stages? Clearly from the hazmat suites and officer loading up on water, there is more there than is being let on. Even seems like they were more deliberately taking head shots?Yea I was wondering the same thing about the food. Looks like these 6 episodes are only going to cover a few days. I think only a day has passed so far. Which makes sense if they are planning on a longer season 2. I still wish it wasn't focused on just one family but the crisis as a whole, see things break down from a whole bunch of different angles.
That said, TWD was always set to be a character drama set in the backdrop of a zombie apocalypse. I didn't expect this show to stray much from it. The larger scope would be cool, but the drama of flawed characters making flawed decisions with incomplete knowledge is a formula that has panned out big time for AMC, Kirkman et al. Not surprised that they didn't stray.
As to the timeline, yea, this is definitely only the night time of day 2. The crazy thing is that in the mainshow, the CDC episode suggests that the epidemic took months to spread globally. That episode itself takes place 63 days after the disease went global.