1. The provisions of sections 250.45, 250.50, 250.55 and 250.60 of this article do not apply with respect to any: (a) law enforcement personnel engaged in the conduct of their authorized duties; (b) security system wherein a written notice is conspicuously posted on the premises stating that a video surveillance system has been installed for the purpose of security; or (c) video surveillance devices installed in such a manner that their presence is clearly and immediately obvious.

2. With respect to sections 250.55 and 250.60 of this article, the provisions of subdivision two of section 235.15 and subdivisions one and two of section 235.24 of this chapter shall apply.