I thought I would update this post and let you guys know how things went. The Adams Tar didn't arrive in time so I went ahead and continued with the Goo Gone. I was able to almost all of it off. However, where there had been a few heavy dots of the glue I could still see a shadow but could no longer feel it anymore. What I did was go over it with the Scratch and Swirl Remover and followed that up with Polish. I did this with my new SK Pro 15mm which worked perfectly.
I wanted to say thanks to everyone who replied to my post! All of them were useful and help me in learning more about detailing. Also, a thanks to Adams as well!