Drunk in Port Augusta?

Port Augusta was a lovely town - population about 19,000. Was kinda lost for a while, cop thought I was driving under the influence..pulled (farid) over and gave me a breathalyzer test. I passed. Explained that I was looking for a petrol station that had "Coles" discount. She (cop) kindly gave directions. Advised me to rest when I am tired. Whew!