Drug dealers apparently need overnight shipping, too, local narcotics agents say.
York County drug enforcement officers recently noticed a spike in drugs being shipped through delivery services such as FedEx, UPS and DHL.
"Within the last month or so, we've seen a dramatic increase," Lt. Jason Dalton of the county's multijurisdictional drug unit said.
Five people have been arrested in drug-shipping schemes since August, according to police reports.