Three-quarters of a mile later, when he stopped at the site entrance, he heard car horns honking, he said.
Thinking something had fallen off his vehicle, he got out and saw the queue of vehicles.
"The man at the front wound down his window and asked me which petrol station I was going to," he said.
"When I said I wasn't, he asked me 'Why not?' and when I said I wasn't carrying petrol, he actually said 'You could have stopped and told us you weren't a petrol tanker.'
"I couldn't believe it... I just went full McEnroe and said 'You cannot be serious!'
"Then the bloke behind asked me where the nearest petrol station was. It just beggars belief."
Mr Anderson, who has been driving double-bellied mortar tankers for about six years, said while it was "quite funny", there was also a serious side.
"My cargo isn't dangerous but if they are following a petrol tanker, their training is to call the police if they think they're being followed," he said.
"People need to stop and think... driving a tanker, no matter what the product, is quite a pressurised job, so following them puts extra pressure on drivers already under pressure without having to worry about absolute morons."
