Already under pressure over the Iguanas affair and his fight to achieve electricity privatisation, Mr Iemma faced road chaos after the closure of the M5 even he was late for work.

The disruption followed delays for thousands of motorists on the Spit Bridge on Monday night, June 23.

But the worst news for the Premier was a Newspoll survey that had Labor's primary vote at 32 per cent.

The poll result finally moves to destabilise his leadership, showing that 63 per cent of voters disapprove of his performance.

A senior Liberal MP said the poll was a ``high-water mark'' for the Coalition in NSW politics in the past 10 years.

There certainly seemed to be a smile on the face of the Opposition Leader, Barry O'Farrell.

But in a sign of the farce State Parliament has become, the Liberal MP for Hawkesbury, Ray Williams, was ejected after pretending he was being strangled by a toy iguana.

``The joke in all of this is the weak leadership of the Premier in not bringing any standards to his government and not imposing any standards on his ministers,'' Mr Williams said.

``His weak leadership in not referring the [Iguanas] matter to ICAC raises further speculation to the involvement of himself and his staff in this matter. I think the NSW public deserve much better than we are getting from the Premier of this state.''

Mr Williams said it was the first time he had been ejected from the Parliament.

Believing his stunt was well received, all he would say was:

``The reaction was lively''.

Senior Liberal MPs questioned the stunt as a way of helping matters when they were finally emerging as a credible alternative government, with polls showing Mr O'Farrell ahead as preferred premier by 39 per cent to 32 per cent.

Mr O'Farrell said: ``I have spoken to Ray Williams about parliamentary standards but, in his defence, Morris Iemma's made a joke this week in not answering questions about the [Iguanas] affair.''

The latest poll is good news for Mr O'Farrell, but it's not all great.

The 41 per cent primary vote registered for the Coalition is similar to previous poll results.