Walgreens - Covergirl makeup deal!

If you have a walgreens near you, they are running a deal on covergirl makeup! If you buy the lipstick ($4) Then you get a FREE mascara (the new one- valued at $13.99). I typically buy makeup anyways, but when there is a deal like this, I found it very worth it! :)
Check your walgreens!!
Do you know when this was running until? I probably missed it but I need new mascara and this sounds like such a good deal. My closest Walgreens is probably about 20 minutes away but I'd go there for this!