Who doesn't like a good chicken dinner: fried, roasted, baked, barbequed, broiled, fricasseed, stewed, sweet and sour, chicken and dumplings, chicken noodle soup, chicken spaghetti. Mmm-mm.
The cache is not at the posted coordinates. Do not go there looking for anything related to this cache: it's not there. It's not on the overpass, nor is it under the overpass, over the underpass, or anywhere between the passes. Don't go wandering around on the highway. We're not trying to figure out why the chicken crossed to road.
So where is the cache? You'll have to solve the puzzle to find it. This may prove to be a real head-scratcher for a novice. The more seasoned geocacher might already know how to hatch the answer.
It might be easiest to find the final coordinates before you set out--you'll know for certain when you do. You may even cackle with delight when you solve it! The container location is very easy to access and is situated such that stealth should be a simple matter, but please use caution and only approach during reasonable hours. Searching around in the dark with a flashlight after closing might draw unnecessary suspicion.

You can validate your puzzle solution with certitude.