The tree is in the ground. I'll let it dry out and see how it looks after a week. The rainy season is pretty much done. Probably one more light rain event for the entire month of May and then nothing until November.
Yes, per the golden rule, that was just a dumb move based on the first thing that popped in Google for "Orange tree yellow leaves". Then I put two and two together and realized everyone in the household was probably watering this poor tree to death when it just wanted some heat and time between waterings to get established... hopefully she'll pull through with a dry week or two.