This is dearly a verse by itself. The previous verse ends the present directions for Saul, and his direction is to "do as occasion serves." Then comes a special direction in case of his going down to Gilgal; nor did he at once take up the kingdom, but went home.
This verse goes on with what had been closed in verse 7. He takes his place publicly as king only in chapter 11:15, which goes on, Samuel considering his office as closed, to the end of chapter 12.