A motorist has been convicted of driving in a lane of the M62 while the red X was illuminated above the motorway.
Leeds Magistrates Court heard James Bunyan, of Elland, ignored the signs on the overhead gantries, endangering firefighters who were dealing with an incident.
Officers were attending a vehicle fire on the westbound motorway close to Hartshead Moor services just before 9am on Sunday, November 2 last year.
Highways Agency workers were also on scene and lanes one, two and three were all closed.
Lane four remained open.
Thirty-eight-year-old Bunyan, of Haigh Street, failed to attend the hearing last Thursday but has been summoned to appear at Leeds Magistrates Court for sentencing at a later date.
PC Nigel Fawcett-Jones and the Safer Roads and Neighbourhoods Policing Team (West) said: “With the increase in managed and smart motorways across the region it is important that drivers recognise that the signs displayed on the carriageway are there for the safety of all road users.
“This includes members of the public who may have broken down in a live lane or, as in this occasion, the emergency services dealing with an ongoing incident.
“To drive beyond the red ‘X’ places members of the public or those dealing with an incident in real danger.”
The digital signs have been operational since the gantries and motorway between Brighouse and Leeds were upgraded in 2013.
In October that year the Examiner exclusively revealed that the speed cameras on the gantries were working even when the illuminated signs were off.
Previously it had been thought motorists would only be automatically fined if they broke speed limits when the digital signs were on.
Last week it was revealed the Smart Motorway would be extended from Rochdale across to Brighouse thanks to a £1.3bn government roads fund.
It means more gantries and up to three-years of 50mph zones and average speed cameras along the Huddersfield section of the motorway.
Upgrade of the busy road from Rochdale to Manchester is already underway.