Large pile of guns and ammunition lying in the road

In experimental 2609 I found a load of guns and ammo outside a house that doesn’t seem like it should be there.

The house it was outside had survivor zombies and more weaponry in it. Did it just spawn the stuff in the wrong place?

If I had to guess, this is a repeat of an older bug where stuff would spawn on a tile where it technically couldn’t and the game would start spawning oodles of stuff to compensate.

Would it be like this then? Of what little I know of the game (I still need to sit down and read the in game instructions), I thought the only time guns and such were found together was in the case of either a trap outside in a field, or a gun basement with them strewn about on various racks.