When an individual is to be treated under this chapter, the department shall arrange, upon the request of a person having a proper interest in the individual’s treatment, and may pay for the individual’s transportation to the designated facility, with appropriate medical or nursing attendants and by the available means that are appropriate and suitable. The department may pay return transportation of an individual and appropriate medical and nursing attendants. When practicable, one or more relatives or friends of the individual to be treated shall be permitted to accompany the individual. The department may pay necessary travel, housing and meal expenses incurred by one relative or friend in accompanying the individual to the facility if the department determines