FAA Reg. on Transponders

Setting sights on NH and Maine, Patrick and I were searching the FAA regulations on transponder requirements in my 1946 Cub. Hoping to fly thru NYC and see the sites along the Hudson River, this requires a transponder and it appears that i am not exempt like i was hoping. I plan to call NY FSDO and maybe get permission to fly thru?? Here is the Reg-


.(3) Notwithstanding paragraph (b)(2) of this section, any aircraft which was not originally certificated with an engine-driven electrical system or which has not subsequently been certified with such a system installed, balloon or glider may conduct operations in the airspace within 30 nautical miles of an airport listed in appendix D, section 1 of this part provided such operations are conducted—