Contact the Local Authority but not the Roads Design Section it would have nothing to do with them.You should contact the Road Design Section of your City/County Council.
I have always believed that a householder has no superior right to the roadspace in front of the house. Puitting cones there is being a nuisance.
The knock on effect of cars now parking outside someone elses house means that these people might end up putting cones outside their house and so on until the place becomes Cone Valley.
If the council want no parking there it is up to them to paint double yellow lines on the roadways in question.
Depending on where you live (i.e. which council) an alternative is to request a resident's parking scheme. For DCC, see:
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