N.Y.C. Admin. Code § 20-322: § 20-322 Exemptions.

The provisions of this subchapter shall not apply to the maintenance, operation or conduct of a garage or parking lot:

a. by the city or any agency thereof;

b. in conjunction with a business for the exclusive accommodation of patrons of such business or the employees of such business; or

c. by the owner or lessee of a multiple dwelling for the exclusive accommodation of the tenants or residents of such multiple dwelling.