Wow, good YMMV price match because Target's policy specifically excludes anything that involves coupon usage from what I remember.
Well I noticed the coupon itself did not say "Not valid with other offers" or anything like that. Plus IMO this isn't a standard coupon, I get it for giving them two of my games so I think it may be allowed, but not sure if other people had success or not with this. I was out for the last 8 hours.
On a side note I found a really nice Vita game case that holds 32 games (was from Vita starter kit and it was mismarked as a PSP Go case so I got it for $2.00 ($1.80 after PUR)
So for $7 in GS credit and $20 cash I got a Vita game, vita case, and MGSHD, a pretty good deal if I do say so myself.