Yuck, coolant leak

[ProfessorX5]

I topped off the coolant, drove to work, and then saw a puddle on the floor of the parking garage. I popped the hood, and there it was. I think it's coming from one of the upper hose since it doesn't drip at all when the coolant is low, and the expansion tank seems dry. Going to top it off again later when the engine cools down, and post a video of it, as I'd like some input from those of you who know much more about this than I do. :P

The dealer is claiming the warranty doesn't cover it, and wants to charge me to fix it... in fact he's not even willing to say anything about what the cost is until he has his mechanic look at it tomorrow, so now I suspect he's going to try to gouge me... so I'll be having a conversation later with the authorities before I bring it to him. I'd just fix it myself, but don't have a garage to work on the car in, and truth be told, I'm pretty low skill when it comes to cars... so pretty pissed off right now.