I was on my way to work this morning at 4:30 a.M. heading west out of exira, iowa on f58. roughly 4 miles west of exira i saw some bright lights coming from the sw. i pulled over because at first i though it was an airplane but there is no airport for 10 miles. it was so low to the ground i thought it was going to land. there were no blue or red blinking lights. it did have a big white orb on the bottom that did blink. the object flew over me and continued on a ne path. i kept going down the highway for another mile and realized it was now following me. i pulled over but it would not come closer and just hovered about 1/4 mile away. i proceeded to drive to work 5 miles n of kimballton iowa. it didn't matter what direction i drove, i could tell it was following me. once i got to work, it was now a long ways away and it just hovered the entire time. i tried taking a couple of pictures but two did not turn out. only one did and that was from a far distance and it only looks like a very bright star or planet.