A 32-year-old truck driver...
It doesn't sound like he was Amish--or at least not a good one.
This guy drove a tanker truck that picked up milk from local farms, both Amish and non-Amish. They are all over the place, given the large number of dairy farms in Central Lancaster County. The Amish may not drive motor vehicles themselves, but they do depend on trucks to get their milk to market in time before it spoils.