Had my truck parked up for 10 months year before last and rats, mice moved in. Took months to get rid of the stench from the A/C.
They ate through the window washer pipes and used the bonnet liner for nesting material.
The wife said she checked every week, 555
You can treat for rodents with an anti-rodent spray, about 100 thb. A bottle lasts quite awhile, does it work ??? Jury is still out.