The man, who owns a car maintenance business, said his dogs had merely sniffed the body of a dead man that had been lying opposite his premises in Peter Road on Thursday.
The protesters, from the Khulani informal settlement, had set fire to four privately-owned cars, a heavy duty truck, and an excavator. Five sports cars and 11 other vehicles were also damaged.
The man, who declined to be named and claimed he left the premises during the protest, said he had opened a case of malicious damage to property.
He said millions of rands in damage was caused.