I need to have my bike brought back up to snuff when I get back from Afghanistan (oil change, etc...). Will the dealership be able to help me dial in the suspension as well?
The rear, yes, correct spring preload and rebound accordingly (10 min job) - the front can't be adjusted, but since you're debt free there are all kinds of upgrades you can do
Before spending money on upgrades, make up your mind if it's necessary and worth it (riding experience first)