You left it for a week!
If'n I was you, I would be draining and changing fluids, as weel as givining it a good bath.
I have had pickups sit for just a few hours stuck like that, and wound up with water in the front and rear diffs. Most are vented and water will seep in if left stuck for long. It's one thing when you go splashing through the water or mud, but when they sit, look out.
The cost of fluids in the fron diff, front finals ect would be cheap compared to the problems that could arise if water is in there.
Clean well around the starter too. If gritty water and mud soaked around there, it'll wear it faster. The grit will do a job on it.
Check the engine and hydraulic fluid real close too.