I bought ice cream that will expire tomorrow?

I bought a box of Nestle Drumsticks ice cream today. While eating I noticed it didn't taste right, the cone was so chewy. I was almost done when my daughter took the box out and said it will expire tomorrow. I have 6 cones yet and I won't eat it because it tasted wrong. So the question is: should I go back to the store and tell them? What will they do since I bought it before it expired?