Default [Q] Stuck on boot! Any Help?

Would anybody be able to provide any insight on how i could fix my s3 that appears to be stuck on boot? i received my warranty fixed device from samsung today and upon rerooting it, i forgot to unlock the bootloader i then went to the "Verizon has detected unauthorized software" screen. After which, I followed this thread hoping to get back to stock. But after following these directions, the phone boots to a Samsung custom (Unlocked) screen and then it goes to the galaxy s3 boot screen and remains there, if anybody could provide any assistance, that would be awesome. I'd just hate to get laughed at if i bring it into a verizon store. thanks and happy holidays.