That's a head-smacker. Some guy somewhere must have actually painted that on the trailer - does that guy not think "Hey, this doesn't really make sense. Are you sure they didn't want somebody to translate this to Arabic?"

Or maybe he did and his boss told him to shut up and do as he's told. Or he thought - "Screw this, I wanna go home on time. I'm not gonna bother to find an Arabic translator now. I'll just paint exactly what it says, and they can't get me in much trouble for that."