|"Damned jeep trail gets worse every year" ―Earl Bassett[src]|
Carmine and Howard were co-workers working on the road into Perfection Valley. It appears their main job is repairing the road after rockslides. When Val and Earl drive up to warn them of what they believe to be a serial killer they are doing just that. Val and Earl soon leave to warn the others. Carmine is breaking up asphalt (for eventual replacement) with a jack hammer when he hits something under the ground it drives the creature into a frenzy and it kills them (off camera). One of their helmets is later discovered on a pile of rocks up on the road.
It appears their truck, which should have been government property, wound up in the town's junkyard.