That night east of C. City on US 30 in the 70's

We had gone to Ohio earlier in the day to deliver custom vans and trucks.  We were returning to the Lake areas and heading east on US 30 outside Columbia City/Ft Wayne. 
Off in the distance we could see a slow moving glowing object up fairly high heading east over the double highway. When it got closer it was lower and lower to the highway.  
There was five of us in the car and we were so shocked that I pulled over and we got out of the car to look. It was triagular shaped, lightly glowing underneath and you could see metal pockets and various pipes,etc.  We heard some noice, but not a jet sound or engines. 
As it was almost completely over us and larger than both sides of the double highway, we were scared and we got back in the car and took off fast.  We all agreed that we knew we all saw a "UFO" that night and there was five of us who saw the same thing.  
One passenger, however, saw the same thing coming across a corn feild near her home later that evening and was frightened that it was coming for her. 
We will never forget it and when we see each other now 30 years later, we always mention it to each other where no one will here us.
Witness indicates that the date of the incident is approximate.  We have assigned an arbitrary date above.  PD