glass coating, no. Plenty of reputed places in the market who have very satisfied customers.
extended warranty, well thats a tough one. Honda will always try to get out of warranty claims. The engine is a proven one for a long time. The CVT i think is new from Honda. 15k isnt a lot for 2 years extra.
utility package, well if you need visors, matts and trunk tray I would prefer genuine ones over after market ones. After market visors for eg will fade and lose color quickly (again depends on quality).