Meet the meat business illegally parking everyday

There is a turn into the road with both sides marked with double yellow lines. Just in from the turning is the exit of the Sainsbury's car park. The meet the meat delivery van is parked blocking visibility of the car park exit every day for the whole day. It is unsafe as cars often come out of the car park unable to see oncoming traffic. Very often the barber will park his 4x4 on the opposite side making visibility near impossible. Both ignore the double yellows and should be fined accordingly.