I been a pasttime "UPS" customer; but not anymore in the way that I used to.
Ever since I had been a hit-and-run victim, of a UPS van. (mid-speed --- sideswipe)
UPS versus my 'cycle.
To no surprise, that be why United Parcel Service be so concealed with those TINY #digits on the top left corner of each van.
And as time go by, the tone of the yellow become darker -- to match the brown of the van.
Any time that a UPS van pass you --- look towards that top left corner; before the van speeds by.