You can, but 廢棄車 would actually be reported to your local environmental protection bureau (not the police). For example, here’s the site for Taipei City: 臺北市政府環境保護局廢棄暨未懸掛號牌車輛管理系統
If you’re not in Taipei, I would just advise googling 檢舉廢棄車 + city name to find the site.