Last Tile Placement and Scoring

[Beast]

 : Please help settle a disagreement...  When placing the game's last tile, and completing an unclaimed city, can a player place a knight in the city and take points for the city as if it were completed (2 pts per tile)?  Or does the game end with placement of the last tile, and the city goes unclaimed because the knight was not in the city prior to placement of the game's last tile?

[mjharper]

You can still deploy a knight and score the city—or rather, you can still complete your turn fully.