I got my bike back from the shop, they confirmed that it was leaking fuel from the tank's weld seams (directly onto the hot exhaust I might add).

It turns out Saga had issued a recall on the fuel tank but the dealer wasn't aware of it and put the problematic tank on. If you have a Saga, particularly the 250cc 2008 Saga Enduro-style motorcycle, I strongly encourage you to phone your dealer and see if your fuel tank is one of the recalled ones!