Even after alignment there could still be a tire pull/push problem. Swap tires with rear ones and see if prob goes away. Also want to be sure that alignment settings are correct. Some shops, and by no means am I saying your alignment shop, can do what is called "set the toe and go" and say the caster and camber settings are within spec when in fact there is not enough right side caster lead and with crown of road will cause drift to the right. Just being in spec does not mean will still track properly. Could also have loose tie rod issues that again are within tolerance but still cause problems. Would be curious to have you send me copy of the alignment printout that should have been supplied to you when you picked up car.