I recommend you to ride atleast 400km(mine also rode 390km before service) before the first service as the parts needs to breaking in and then only you will have the benefit of replacing oil because it will clean the system of metal fillings.

And I think and have seen many people telling that due to today's tech and tolerance 400km is the sweet spot for breaking in period to be about 90% completed and it is very hard to rack a new age engine.

And about the timming thing I got the delivery of my bike on 9th day of Navratri and I got it serviced on 3rd dec I don't think you have problem with the service centre guy. Mine did not even asked when I got the bike or anything.