It's like now KFC is and always was Kentucky Fried Chicken. But to a generation was only known as the acronym. They tried to hide the fact for years all their food was fried. Didn't scare one person away!
There was a thread earlier that used "United Parcel Service" and someone on the street used the term as well.
Living in the Corporate world before retirement, I had not heard the term "United Parcel Service".
The Corporation name is UPS.
Does anyone in the Small Package operations still use "United Parcel Service"?