Ariz. Rev. Stat. § 47-4303
A. Any knowledge, notice or stop-payment order received by, legal process served upon or setoff exercised by a payor bank comes too late to terminate, suspend or modify the bank's right or duty to pay an item or to charge its customer's account for the item if the knowledge, notice, stop-payment order or legal process is received or served and a reasonable time for the bank to act thereon expires or the setoff is exercised after the earliest of the following: