Noticed strange object in the afternoon sky while driving home.

I was headed home from work, on the phone with my mother, and I noticed a large black cigar shaped object in the sky, it had a very subtle curve to it, not a completely straight cylinder almost like a very long parachute or such item but without anything hanging from it. I kept eyes on it's general location all the way to my apartment parking lot, I continued to observe it from the parking lot for a few minutes. I think the full amount of time I had eyes on it was 15-20 min because that's about how long it takes for me to drive home from work.
The object was in roughly the same area throughout my observation, although it may have been moving it is hard to tell as the bulk of my visual on it was while I was in a moving vehicle.