When you visit the dealer, I would recommend that you tell the General Manager about your visit to service. Not sure how long after you took delivery before you and the service guy noticed the scratches, but that will also be important. If it is on the lower part of the front bumper, it could have easily been done, without your knowledge by parking too close to a sidewalk, bumper stop or something like that. We see this all the time with Civic's because they are low to the ground. Many people, including myself pull up too close at the grocery store and scrape the bumpers. So you might also retrace any possible places that you might have done the damage. If you are certain it couldn't have been done by yourself, then explain this to the GM. It is very possible that the transport driver did the damage when loading/unloading and the dealership missed it when they took delivery. Many possibilities. Anyway, if the dealership feels that they have no responsibility whatsoever, then maybe they can at least help you get the repair done in an inexpensive manner.
I don't want to bash the other dealer without knowledge of the whole situation, but I know what kind of "heat" our dealership would be under for telling a customer "sorry, you're on your own." That would last only long enough until you reached our GM or owner, and then they would both want to know why we were arguing with a customer of OURS over a $100-$200 problem that we could easily have been responsible for.