Except as otherwise provided in 30-9A-340(3) and unless the bank otherwise agrees in an authenticated record, a bank's rights and duties with respect to a deposit account maintained with the bank are not terminated, suspended, or modified by:
(1) the creation, attachment, or perfection of a security interest in the deposit account;(2) the bank's knowledge of the security interest; or(3) the bank's receipt of instructions from the secured party.En. Sec. 60, Ch. 305, L. 1999; Sec. 30-9-361, MCA 1999; redes. 30-9A-341 by Code Commissioner, 2001.