In evidence, Rood said he found the pills in the pouch behind the front seat in a Toyota Corolla car he bought six or seven years ago.
He said he didn't know what the pills were and put them away, thinking that he may ask somebody what they were as he was curious.
Rood, who repairs vehicles in the John St property, which is behind Anytime Fitness Gym, said he often came across things left in cars he was fixing.
He said while he had forgotten about the pills since, in hindsight he should have thrown them out when he found them.
The jury retired to consider it's verdict around 11.10am and returned around two hours later with their guilty verdict.
Rood was then fined for the three offences.