Our Walmart carries the gluten free chicken strips, but does not have a "gluten free section". Ours are in the freezer isle that is labeled "healthy entrees" or something like that. It is where the Amy's frozen meals are and the Veggie meals. They are in a green bag. We like them, but there are normally only 4 strips per a bag. My kids will each eat 2 (more if I let them!). But they are good and easy for a quick dinner when you don't have time to cook!
I have not seen them at our Frys, Safeway or Sprouts.