DOHC,
If you put those fancy neon lights, I don't think you should worry about malaysian authorities or JPJ or whoever. You should worry about USA Area 51 officials, or worst still.... ALIENS. They may think you are alien and catch you and your car back to Area 51 where you will be treated like an experimental subject (aka alien). Aliens may react worst. They may think you are hostile and blast some whatever photon phaser dissintegrator at you and you may break into bits of atoms, cells and particles and vanish into thin air. Careful ar. hehehehehe