She received the insignia from Governor General Sir Jerry Mateparae at an investiture ceremony at Government House in Wellington today.
Mrs Rose was police national road policing manager for four years until her retirement last year - during which time New Zealand's road toll reached a 60-year low.
She oversaw the introduction of the zero alcohol allowance for teenage drivers, the ban on cellphones when driving, and a reduced speed tolerance for holiday weekends.
The lower speed tolerance was a challenging but successful initiative, she said, and she hoped police would implement it permanently when the time was right.
"It was a hard thing to get in. It was difficult for New Zealanders because they don't think they're villains if they speed, and they're not. It's the impact of speed if they have a crash."
Since retiring from the police, she has been deputy chairwoman independent taskforce on workplace health and safety, and is working as an executive advisor for Paula Bennett, focusing on child safety.
She said while her wardrobe may have changed, the work was still focused on the same goal. "Whether it's the taskforce on health and safety or road safety, it's actually about the quality of our lives."