A motorist got back at SBS Transit's traffic inspectors who photographed his car parked in a bus lane.

Shortly after they took the photo, he spotted the two inspectors having breakfast, with their motorcycles parked illegally along double yellow lines.

Whipping out his camera-phone, he filmed the motorcycles, confronted the two men and then put up the sequence on popular video-sharing website YouTube.

Now the clip is making its rounds on the Internet via blogs here, and the two men are in trouble with their employer.

The video-clip does not identify the motorist, but he is heard asking the two inspectors why they parked illegally.

He also asks them why they had photographed his car, instead of simply asking his wife, who had been seated inside, to move it.

The inspectors tell him in the clip that they were just doing their job.

The licence-plate numbers of the motorcycles are clearly visible in the nearly two-minute-long clip.

Yesterday, a spokesman for SBS Transit confirmed that the inspectors were its staff and added that the company expected better behaviour.

"We are dismayed to learn of this incident," she told The Straits Times. "The two mobile traffic inspectors filmed in the clip will be disciplined."

The company will also remind all its inspectors not to break the law, especially because they are supposed to help enforce it.

The main duties of the 12-strong team include responding to bus accidents and breakdowns, as well as nabbing motorists who stray into the bus lanes.

The inspectors cannot issue traffic summonses or fines.

They forward photographs of errant motorists to the Land Transport Authority to decide if action should be taken.