He said police were now combing through CCTV footage after completing a scene examination this morning.
The offender has been described as caucasian, approximately 180cm tall and of athletic build. He was wearing a camouflage jacket, black gloves and beanie.
Police would like to speak to anyone who was travelling in the area of BP Main Street between 8.30pm and 9.30pm last night, and may have seen a person fitting this description.
Anyone with information is asked to contact Detective Sergeant Johnny Oram on 06 351 3600. Information can also be provided anonymously by calling Crime Stoppers on 0800 555 111.