Take a look at this one
Unlawful use of a loaded firearm.
This is how we deal with the same situation in Washington. This will address the semantics of "how far off the road is off the road".
http://app.leg.wa.gov/rcw/default.aspx?cite=77.15.460
[h=4]RCW 77.15.460[/h][h=3]Loaded rifle or shotgun in vehicle — Unlawful use or possession — Unlawful use of a loaded firearm — Penalty.[/h]
(1) A person is guilty of unlawful possession of a loaded rifle or shotgun in a motor vehicle, as defined in RCW
46.04.320, or upon an off-road vehicle, as defined in RCW
46.04.365, if:
(a) The person carries, transports, conveys, possesses, or controls a rifle or shotgun in a motor vehicle, or upon an off-road vehicle, except as allowed by department rule; and
(b) The rifle or shotgun contains shells or cartridges in the magazine or chamber, or is a muzzle-loading firearm that is loaded and capped or primed.
(2) A person is guilty of unlawful use of a loaded firearm if:
(a) The person negligently discharges a firearm from, across, or along the maintained portion of a public highway; or
(b) The person discharges a firearm from within a moving motor vehicle or from upon a moving off-road vehicle.
(3) Unlawful possession of a loaded rifle or shotgun in a motor vehicle or upon an off-road vehicle, and unlawful use of a loaded firearm are misdemeanors.
(4) This section does not apply if the person:
(a) Is a law enforcement officer who is authorized to carry a firearm and is on duty within the officer's respective jurisdiction;
(b) Possesses a disabled hunter's permit as provided by RCW
77.32.237 and complies with all rules of the department concerning hunting by persons with disabilities; or
(c) Discharges the rifle or shotgun from upon a nonmoving motor vehicle, as long as the engine is turned off and the motor vehicle is not parked on or beside the maintained portion of a public road, except as authorized by the commission by rule. This subsection (4)(c) does not apply to off-road vehicles, which are unlawful to use for hunting under RCW
46.09.480, unless the person has a department permit issued under RCW
77.32.237.
(5) For purposes of subsection (1) of this section, a rifle or shotgun shall not be considered loaded if the detachable clip or magazine is not inserted in or attached to the rifle or shotgun.
[2014 c 48 § 18; 2012 c 176 § 28; 1999 c 258 § 7; 1998 c 190 § 28.]