Is this true?

Muddydogs wrote:
The easiest solution for your vehicle is to open the hood. These rodents are looking for a warm, dark, dry cave like area to build there nest and the engine compartment is the perfect place with the added bonus of having great nesting material. By opening the hood you take away the dark, dry cave and the engine cools faster so its not as inviting. All the places I have been that have rodent problems the locals open there hoods then set them down on a block of wood so there open about a foot or so to keep the rodents from staying but keep the hood low enough that a strong wind won't rip it off.

Thank you Muddydogs for the tip. How simple. I should have thought to do this.. The problem at the campground is so bad I believe Maricopa County Parks should give the guests a heads up. We stopped using our bird feeder there thinking that the seeds might attract the rats at night. Thanks to all for taking the time to respond to my question.