Self-service options have been all-the-rage for many years now, with one of its earliest manifestations appearing in the form of pay-at-the-pump gas stations. According to PetroleumServiceCompany.com, “In 1973, a station in Abilene, Texas, invented pay-at-the-pump. By 1994, about thirteen percent of convenience stores offered pay-at-the-pump. Less than a decade later…