Yeah... did you read the same article as I did by "click & clack"?

Canadian gas stations were the first ( and only? ) ones to put in pumps that based the volume on temperature. The pumps cost $3000 more, but Canadian stations were worried they would lose money selling gas that was colder than 60 degrees F. Most U.S. locations don't worry about that. Minnesota may be an exception! In December frost was 24" down... but I'm sure the tanks are very deep and never freeze, but may dip below 60 for a few weeks.