No waiver of any provision hereof shall be binding upon a party unless such waiver is expressly set forth in a written instrument which is executed and delivered by or on behalf of the waiving party by an officer of, or authorized representative for, such party. Such waiver shall be effective only to the extent specifically set forth in such written instrument. Neither the exercise (from time to time and at any time) of, nor the delay or failure (at any time or for any period of time) to exercise, any right or remedy shall constitute a waiver of the right to exercise, or impair, limit or restrict the exercise of, such right or remedy or any other right or remedy at any time and from time to time thereafter. No waiver of any right or remedy shall be deemed to be a waiver of any other right or remedy or shall, except to the extent so waived, impair, limit or restrict the exercise of such right or remedy.