Out of those pots immediately. Nursery grown plants are potted ,,, generally, in Promix, and they are very carefully watered so they're near perfect all the time, never drenched. These plants look severely stressed to me. I bet many of the little roots, are rotted now. Those pots will not dry quickly enough.
Out of the pots and washed clean, then dry for a few days.
Let us know what you find! And maybe a photo or two of the plants out of that soaking wet suffocating Promix. Good stuff, Promix, for petunias and coleus...
