From WKYT-TV News in Lexington, Kentucky:
A Pulaski County man faces charges after police say he was riding his horse drunk.
Somerset police arrested 42-year-old Millard Greg Dwyer Sunday night. A state trooper says Dwyer was riding a horse on Borne Avenue when they jumped in front of his cruiser. The trooper says Dwyer was about to fall off the horse….
Dwyer was charged with operating a vehicle other than a motor vehicle under the influence of intoxicants.
Apparently, a horse in Kentucky is a non-motorized "vehicle".