It sounds like the council was quite reasonable. They refused to close the road. Doing so would isolate some people due to other road closures. The film company also didn't bother to apply for them to lift parking restrictions on that road. If you park on a double yellow, you can't complain about being ticketed.
I've seen over zealous traffic wardens. If you have the proper permissions, it's easy to get the ticket invalidated. Also, the cost of the tickets will be chump change compared to the other costs of most films.