Ahh ha, this is like when I say a Scotsman was rude to me and someone else informs me that it must not have been a true Scotsman, then
The store isn't running out of bread, bread-eaters are running out of money.
If there are consistent breadlines, that means someone is giving away a resource at below its value - free markets sort that out very quickly. They turn up for a few days then go away as prices adjust. Persistent problems only crop up when something regulatory is keeping prices down because the seller has huge incentives to raise them until people go away.
I'm not arguing the situation would be rosy, but breadlines just are not how free markets deal with the situation. Markets use price signals to allocate, not long queues. Not a controversial fact, although people do sometimes get very unhappy about it.