UPS locations in Rockwall, TX

When I walked in with my package at the location at 709 W Rusk St in Rockwall, the clerk told me to sit my down and asked me for .50 cents. When I asked what the money was for, he said the convenience of him being there. I said you've got to be kidding me. He said no, some people even give me a dollar because the next nearest location is about 4 miles away. When I mentioned I was going to tell UPS; his answer was go ahead and he gave me back my 50 cents and said take your package somewhere else.