N.H. Rev. Stat. Ann. § 167-D:9

A person with a disability not using a service animal in any of the places, accommodations, or conveyances listed in RSA 167-D shall have all of the rights and privileges conferred by law upon other persons; and the failure of a person with a disability to use a service animal in those places, accommodations, or conveyances shall not be held to constitute nor be evidence of contributory negligence.