Noticed something from the corner of my eye and saw a ufo going south west until it ubruptly changed course and became closer to our driving direction. my husband finally noticed what i was talking about and as it got closer to us he started recording with his flash on and i got scared and told him they were going to see us and just as i said that it put out a sort of invisibility shield of some kind but we could still see the object. it then changed or transformed into a helicopter shape right before our eyes and i had to pull over from being so distraught