Ok, I don't think IABU, but posting here for advice because AIBU is the spiritual home of parking threads.
I live on an old victorian street with v little parking, so narrow road with parked cars on both sides the whole length. There is a preschool on this street and parents regularly pull up and park in the middle of the road outside it, for a few mins while they drop their kids off. There's also a fair bit of parking across driveways etc, but I don't have a driveway. This morning I was late for the doctors with DD because of the obstruction and they almost refused to see us 
I have complained to the school before but got a very wishy washy response, basically taking no responsibility. I want to complain about this to the council (or whoever) but I've looked on my local council's website and can't work out the relevant department. Any ideas?