If an ellipsis ends the sentence, then there are three dots, each separated by a space, followed by the final punctuation.

In the case of a parenthetical expression which is itself a complete sentence, the final punctuation may be placed inside the parenthesis, particularly if not a period:

Put all this into parentheses, and place it after the final punctuation.

The dragon's horn moon rode in the firmament as the final enigmatic punctuation on an otherwise blank page.

Note that if the parenthetical does not contain a complete sentence, the writer should not place final punctuation, such as a period, inside the parenthetical.

If you require dessert, creamy coconut ice cream or raspberry sherbet might put the final punctuation on an ample and satisfying meal.

Mr. Spock 's final punctuation added gravity to his monologue.

So how to explain decades of performances and recordings with "savagely final punctuation"?

Barclay Records of France added final punctuation to the album title: Are You Experienced.

As Anthony retreats backstage, it is left to his band members to put a final punctuation on the evening's concert.