Welcome to the forum.
I'm sure you'll enjoy the car, and hope you enjoy the forum. The service indication coming up seems strange, I wonder if perhaps there's some procedure by which the dealer sets a proper interval during the Pre-Delivery Inspection, and that was perhaps missed? I'm sure you'll have a word with them, and that it'll turn out to be something & nothing (oil pressure and/or a puddle under it on the drive would be the one to worry about), but it'd definitely be better to check sooner rather than later.
All the best,
Rob.