YaY!! Someone actually retrieved the snakes and set them loose....
BUT sounds like the driver was a little freaked out
"when a driver reported a "large snake" showing "its fangs and hissing loudly" had been sucked up a hose."
"It turned out they were grass snakes which feed almost exclusively on amphibians and not, thankfully, motorway workers."
https://www.bbc.com/news/uk-england-bristol-53860591