Yes, I think that wilted plant will come back if you can re-hydrate it, just because the leaves are still green. If it doesn't respond to the deep watering, I would be inclined to dig it up and get a look at the root ball - it may be still compacted, so maybe you can break it up and incorporate some good, moisture-retentive soil around it when you re-plant it. Wash out the old depleted soil with the hose if you do that, so the new stuff can get in around the roots. (I'd do it in the evening, so the plant doesn't get too shocked by heat and sun etc.)
Once leaves turn yellow it's fairly rare for them to green up again unless you can fertilize. Don't know about Manatee, but down here in Sarasota County we are on fert restriction until September 30th. So they may lose those yellow leaves, but they will probably survive, especially if it rains more often now. Even just more clouds in the afternoons will help our plants to survive this brutal summer weather. You could buy a bag of alfalfa pellets from your local feed store and use it for a soil amendment around the new plants - it's a mild slow-release nitrogen boost that's allowed since it's not soluble chemical fert.
I'm so jealous of your heavy rain yesterday - we got just the very tail end of that storm down here, about a 10min. shower was it. I've re-named this Saharasota County.
