When young Elias is confined to that small space with the dead animal, he eats with the utensil in his left hand when given food. But in what doesn't kill us adult Elias clearly is right-handed because he holds the gun in his right hand.
The road map Sicarius pulls up is rife with errors. There is no I-985 (3-digit interstates go around or into cities, not between them), I-75 doesn't run east-west, but north-south, and the mileage shown for the road options makes no sense, as the shorter path shows a longer distance.