GWK said "Why is a vehicles at you're plant running on every fifteen minutes and then off for fifteen minutes, from nine at night until seven thirty in the morning, many days in the last several months. Across the street from you or side street behind you're building is a residential area with people trying to sleep at night. This will be my third night this week that I will not have a decent sleep thanks to the constant noise of you're idling vehicle. I have to carry a bag into a store because I no longer can buy a plastic bag when I buy groceries, but it's ok for you to poison and add to our climate problem nightly. Also noticed, never a truck running during daytime office hours. "
Are you maybe asking about the trailers? They are climate controlled by a small diesel engine to keep from freezing product.