Driver summoned to Court after officers hear his car's "extremely loud exhaust".
Police were out on foot patrol in Cashel Mall on Wednesday when they heard a particularly loud car accelerating and reverberating through the nearby indoor carpark.
Senior Constable Scott Agnew says the noise had gained the attention of members of the public in the area who helped identify the car.
"We stopped the vehicle inside the carpark and issued the driver with a $600 fine for driving causing annoyance.
"The driver admitted the offence, but it was an expensive bit of fun.
"He also had an excess of breath alcohol, and it wasn't his first time."
Senior Constable Agnew said the car had a modified exhaust and was issued with a green sticker for defects.
"Exhaust noise can't be noticeably and significantly louder than the original exhaust."
One man, 56 years old, is due to appear in Christchurch District Court on 25 March charged with driving with excess breath alcohol for the 3rd or subsequent time.
