Alright, I got something that might help people who are interested in picking up a 3DS at Walmart that will get you the upc number so you can scan the price for yourself instead of asking an associate to do it for you.
Anyway, head over to www.upcdatabase.com
and look to the left and click 'look up'. You'll be forwarded to a page that requests a upc number. Enter one of the following:
Aqua Blue 3DS - 045496719227
Cosmo Black 3DS - 045496719210
The site will turn the number into a barcode which you can then print and bring to scan at Walmart. Only one code should be enough to confirm both prices, just be aware that the upc for the Aqua Blue 3DS will come up as an unknown product in upcdatabase.com. Just ignore it, it'll scan. Also, the price checkers at Walmart can't read off phones very well so I suggest printing beforehand.
For whatever reason, I can't link the barcode pics directly so this is how it's done. There's probably an easier way to look up the barcode but this is what I've done plenty of times at multiple retailers (besides Walmart) every time a price drop is impending. Hope it helps alleviate some migraine for those of you who are sensitive to idiocy in Walmart.