REALLY cheap Sunny D at Kroger this week

My Kroger has Sunny D for .79 ea after mega sale this week (wyb 8.) Some areas are repotedly getting their Sunny D for .59 after mega sale!!!! There was a recent .25/1 mf coupon which doubles to .50 in my area so that makes them .29 cents each with coupons and the mega sale and .09 ea in other areas (some reporting .02 cents after coupons and mega sale!!!)

Does anyone know if this is something you can stockpile or do they have to be refrigerated??????!!!!! It says on the container to refrigerate after PURCHASE but the store had them in the middle of the isle!!!?