ignoring motorway/road closure.

[grumpy52]

When I had to attend the crash scene on the M26 on Wednesday evening I was told to go carefully by the highways agency bods as the police were with a car that had ignored the closure and tried to proceed up the closed motorway , he was prevented from going far by a large highways wagon parked across the carriageway.
Whats the charges likely to be ? Also he was already disqualified !