(1) The department may sell at public or private sale, as it determines, an interest in personal property, however acquired by it, which it determines is not necessary to the laying out, altering, construction, improvement, or maintenance of a highway.
(2) The department may sell at public or private sale, as it determines, maps, books, pamphlets, or other printed matter prepared or acquired by the department. The department may sell copies of highway records to the public and may set reasonable prices for them.
(3) The proceeds from sales made under this section shall be paid into the state treasury to the credit of the department.