The panel of eight men and four women took six hours and 15 minutes to return their unanimous verdicts.
Emergency services declared a "major incident" after the collision between Totnes and Paignton.
The 64-metre fatberg was discovered under The Esplanade in Sidmouth, Devon, just before Christmas last year.
The couple are needed to run Marisco Tavern - known as a pub that never shuts.
Miniature chihuahua called Gizmo taken from house in Paignton.
US D-Day troops killed by Nazis in British waters as they rehearsed for the D-Day landings have been remembered in an art installation.
The 64-metre monster was made of hardened fat, oil and wet wipes.
The fish would have suffered a slow death, the RSPCA said.
The 64-metre-long blockage was discovered lurking in Sidmouth’s sewers at the end of 2018.
The 49-year-old from Devon was found in his car upside down in a ditch after swerving to avoid an octopus he claims was in the road.