You had the trunk repaited right? The emblem removal should have been in the final invoice/estimate. The paintshop cut a corner and now you have to pay for it.
If it was an insurance deal they(your insurance co.) will have a field day with that ****.
Personally I'd take the car back to the paint shop and speak with the body shop manager and have them repaint it. Because they obviously cut a corner even though you(or the insurance co paid for it).
If the insurance company paid for it then I'd contact them and let them handle it. They love **** like this because they caught the bodyshop doug something they shouldn't.
To answer your question though:
3M rubbing compound and a high speed buffer should take most of it out. However, it will still have a paint/clear line there.
