I'm certainly not unarmed myself. But I think you have to admit that if they were standing outside with bullhorns telling you to come out unarmed OR ELSE, it would be suicide to resist.
Yes, you might take a couple of them with you. But your chances of ever seeing daylight again are pretty slim.
In those cases, knowing when to get out of dodge BEFORE the gendarmes show up is the trick. If a blanket prohibition goes into effect, it's time to bug out.