2016 Peterbilt 597 Engine Idle?

Ask your company how to keep it idling. It probably has an ambient air temp sensor that enables it to idle if it is excessively hot or cold outside. Do you have a bunk heater (Espar or Webasto) to keep you warm or an APU (TriPac, etc.) to keep you cool? If you do, then use them instead of idling the truck engine.
If it is your truck then ask your salesman how to keep it idling.

 

When even your windshield washer pump has to run through a chassis node, what were you expecting?

 

Sounds like my Toyota. Runs everything (auto off headlamps, drl, power windows, locks, etc) through one relay called the integration relay that, while extremely rare, can fail and cause your Camry to become possessed.