That is entirely up to you. At the first service they are gonna adjust the cables, adjust the chain/belt drive. change the oil and filter and maybe go over the bike and tighten nuts and bolts. They MIGHT listen to the valves and let it sit overnight and adjust them if they seem loose but 1000 miles is early for a valve adjustment on most bikes.
If you can do all of that yourself, why take it in? If you worry about a warranty issue-well as long as you have written maintenance records and receipts for oil/filters etc you have a case. But don't claim work was done that never was, because when an engine is malfunctioning somewhere down the line, we can tell when we open it up if the maintenance was performed when it should be just by the wear and tear