N.Y. Veh. & Traf. Law § 1146-a

§ 1146-a. Approaching horses. 1. Notwithstanding the provisions of any\nother law to the contrary, every driver of a vehicle shall exercise due\ncare to avoid colliding with any horse being ridden or led along a\npublic highway.\n 2. Every driver of a vehicle shall approach a horse being ridden or\nled along a public highway at a reasonable and prudent speed so as to\navoid frightening such horse and shall pass the horse at a reasonable\ndistance.\n 3. No driver of a vehicle shall sound the horn when approaching or\npassing a horse on a public highway.\n