Upon further inspection, some of the War Queen remained.
Parts of limbs no longer than a human hand, her seven cores the size of the average male, and dried blood of deep green.
Everything valuable was taken away by the clean-up crew after the rest of the ants were disposed of.
That wasn't too difficult for the crew, as the ants began to scatter once their queen died, allowing them to easily pick them off, group by group.
With that done and the destruction all around being taken care of as well, they sent the loot back to the Academy.
And yes, trucks filled with sand and rock did in fact come through, filling everything and excavating where it was needed as if it was a construction site.
They made it seem like nothing occurred, and that the War Queen disappeared.
While they did that, the unnamed team had already left, gone back to their homes.