The injunction against the Aldermaston development was issued for the first time in December.
Authority managers were found to have inferred "absorbing [the] abuse 'went with the territory'".
West Berkshire Council said the car park was intrusive in the rural area and denied it permission.
The plan to install the floodlights was approved earlier this year by West Berkshire Council.
A national scheme means children between five and 15 travel free on some local services in August.
West Berkshire District Council received 772 objections compared to 301 in support of the plans.
The first West Berkshire Disability Access Forum meeting is being held on 6 August to shape policy.
A member of the public suggested the authority did not have the rights to use it.
Oxfordshire - and a part of Berkshire - will be split into three new unitary authorities.
