Dear *insert name*

I would like to bring your attention to the parking practices of many parents outside *insert name* school in the mornings and at the end of the school day.

*insert what parents are doing*

As I'm sure you will realise, this is not only dangerous but it is illegal. I am extremely frustrated that these lawbreakers are not being dealt with and can only assume this is because the problem has not been highlighted before now. I don't want to wait until a child is injured or hurt before a solution is found, so would like to suggest a joint meeting between *insert recipients* to discuss a strategy to ensure that all children are safe on their way to school.

I look forward to your response

yadda yadda yadda

Something like that?