Kmart Cereal Deal - 3/5

I don't often shop at Kmart, but I always scan their ad just to see what they are offering, because I am usually near one at least once a week. This week, I was excited to see a deal on Kellogg's cereal.

Here's what I got:

5 boxes Kellogg's Cereals
1 8ct box Kellogg's PopTarts

-$5 $5/$5 Kellogg's Cereal IP (was available a few weeks ago)
-FREE PopTarts wyb 4 Kellogg's Cereals Shop My Way Rewards offer

Total $5 OOP. The receipt says that I saved $10.64.

Does anyone know if the free PopTarts deal is a limit of one? With the new $4/4 coupon that is available, I could go back and get 4 boxes of cereal and PopTarts for only $4 OOP.