Great Deal on Ziploc Bags at Rite-Aid This Week! $.67 each!

This week Rite-Aid has Ziploc Bags on sale 2/$5 and there was a tear pad in the store with this coupon: Buy 2 and get 1 free. Here is my scenario: 

Buy 6= $15 plus tax

-$3/$15 Rite-Aid Survey coupon

-(3) $1/2 Ziploc Products

-(2) Buy 2 get 1 free coupons

Total= $4 plus tax for 6 boxes or $.67 each!