The officer and judge are full of crap: See below, 547.327
If the lights are wired in to turn on with the low beam headlights, they are auxiliary driving lamps.
If they are wired to be operated separately, they are spot lamps.
This is very easy to deduce from below. I also see ZERO requirement in the statutes to cover spot lamps when not in use.
Sec. 547.327. SPOTLAMPS PERMITTED. (a) A motor vehicle may be equipped with not more than two spotlamps.
(b) A spotlamp shall be aimed so that no part of the high-intensity portion of the beam strikes the windshield, window, mirror, or occupant of another vehicle in use.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Sec. 547.328. FOG LAMPS PERMITTED. (a) A motor vehicle may be equipped with not more than two fog lamps.
(b) A fog lamp shall be:
(1) mounted on the front of the vehicle at a height from 12 to 30 inches; and
(2) aimed so that no part of the high-intensity portion of the beam from a lamp mounted to the left of center on a vehicle projects a beam of light at a distance of 25 feet that is higher than four inches below the level of the center of the lamp.
(c) Lighted fog lamps may be used with lower headlamp beams as specified by Section
547.333.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Sec. 547.330. AUXILIARY DRIVING LAMPS PERMITTED. (a) A motor vehicle may be equipped with no more than two auxiliary driving lamps.
(b) An auxiliary driving lamp shall be mounted on the front of the vehicle at a height from 16 to 42 inches.
(c) Auxiliary driving lamps may be used with headlamps as specified by Section
547.333.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Sec. 547.332. OTHER LAMPS PERMITTED. A motor vehicle may be equipped with:
(1) not more than two side cowl or fender lamps that emit an amber or white light without glare;
(2) not more than two running board courtesy lamps, one on each side of the vehicle, that emit an amber or white light without glare; and
(3) one or more backup lamps that:
(A) emit an amber or white light only when the vehicle is not moving forward; and
(B) may be displayed separately or in combination with another lamp.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.