Heat oil in a large skillet over medium heat. Mix salsa and vinegar in a small bowl. Coat each side of pork chops with 1 t. taco seasoning. Add chops to the pan; cook until deep brown and cooked through, about 6 minutes per side. Transfer pork chops to a dinner plate and keep warm. Add salsa mixture to the skillet, stir and simmer and 2-3 minutes to thicken. Spoon a portion of sauce over each chop and serve.