Object was cigar shaped,lights along side and exremely fast.

I was driving toward Gonzales Tex from Houston, and as I started to pass a slower moving vehicle. This cigar shaped object crossed the road in front of me at a tremendous rate of speed.It was appoximately 8' above the ground going south to north. The car in front of me swerved to the shoulder and I immediately pulled of also. I got out of my car and went back to the other driver who was a pregnant woman and I asked her if she saw what I had witnessed.She was trembling as we discussed what we had seen, I looked for the "craft" and it was no where to be seen but I noticed that the pasture grasses were parted where this object had passed by. I drove onto Gonzales immediately to the police station to report what I had seen.The officer dismissed it by saying that it was either a crop duster aircraft or some sort plane from the Air Force base near Galveston. I asked him to call both places and he refused.I wish I had gotten the womans name so as to verify this claim. I've waited all these years to come forth because of the ridicule I would have recieved among my family and aquaintences.
Date is approximate.  PD