32-1-563. Powers of officers. (1) When the officers of a bank are of the opinion that an emergency exists or is impending which affects or may affect any of a bank's offices, they may, in the reasonable and proper exercise of their discretion, determine not to open any of those offices on any banking day or, if having opened, to close any of those offices during the continuation of the emergency, even if the department has not issued and does not issue a proclamation of emergency. An office so closed shall remain closed until the officers determine that the emergency has ended and for a further time thereafter as may reasonably be required to reopen. However, in no case shall an office remain closed for more than 48 consecutive hours, excluding other legal holidays, without requesting the approval of the department.
(2) The officers of a bank may close any of the bank's offices on any day:
(a) designated by proclamation of the president of the United States or the governor of this state as a day of mourning, rejoicing, or other special observance; or
(b) that the federal reserve bank of Minneapolis is not open for business.