The municipal corporation and its enforcement officers are afforded discretion as to whether or not, and in what manner, to enforce any provision of this code, provided that in the exercise of such discretion they shall not unfairly discriminate against or otherwise cause prejudice to the interests of any person to the favor of another person. The municipal corporation and its enforcement officers shall have immunity from any liability arising out of the enforcement of, or the failure or delay in the enforcement of, any provision of this code to the full extent provided by I.C. 34-13-3 and 34-13-4. However, the discretion granted under this section does not relieve an enforcement officer from the obligation to enforce any provision of this code when specifically ordered to do so by a superior authority.
(`86 Code, § 1-4-2)