Rout
They were undone.
Konoha's infrastructure may have been in shambles but Sand's force, what remained, was decimated.
Sound, of course, had cut and run.
Many of Suna's younger shinobi had fled also, fear and panic leading to a route rather than an attempt at an orderly fallback.
As he saw the backs of Suna's ninja fleeing the scene he realized just how rotten things had become under the fourth Kazekage.
Reason
Their rendezvous point lay ahead.
He passed a sight that gave him pause, a Leaf shinobi tending a boy who must be his son.
Baki recognized signs of Kankuro's poisons.
Watching the pair, Baki realized what still pissed him off the most was how Kazekage abandoned his children.
They should have had a father in their lives!
He didn't recognize the relieved looks on their faces when he arrived.
Rest
His heart stopped for a moment when he saw Gaara prone, his body shielded by Temari and Kankuro.
He feared the worst, that Gaara had…died.
He couldn't tear his eyes away, couldn't process the words that Temari was saying, then shouting as she shook him by the shoulder gently at first then escalating to finally get it through to him.
Baki, he's sleeping. Sleeping! It's okay, he's only sleeping!