What are the chances of confiscation by the government?

[Skvez]

I think it's more probable that just after an event (rather than leading up to it) some individual with some historical authority behind them (mayor, police chief etc) will come door to door with the backing of a mob and enforce an "emergency measure" to "share the food for the benefit of all". They'll have the mob all riled up and will make their "measure" seem perfectly reasonable using phrases like "community spirit" and anyone who resists will be labelled as "anti-social" for "hording". Even if they go away (initially) without having gained entry the mob will likely target the residence in the near future.

We *need* to be ready to hide our food in the case of an event (although I don't think it needs to be hidden yet, we need to already have places in mind for when an event occurs).
Fortunately at least initially most searchers will expect food to be in the kitchen cupboards, not in a box in the garage or under the bed.

Polite co-operation is going to be better than having the authority come back in force.
If anyone has ever seen a home after it's been searched by the authorities, it looks like it's been burgled except the belongings are all dropped on the floor rather than stolen.
They really do trash the place.