Ask a Traffic Law Question, Get an Answer ASAP!
How long were they there please?
If this is a public road then you could argue this is causing an obstruction. It depends whether or not the location prohibits or allows loading although the time for which they were there would exceed the normal period allowed for loading.
That said, that does not give you a defence in civil law. Come what may, if they were stationary and you were moving then the reality is that you're likely to be liable I'm afraid.
Can I clarify anything for you?
I'm afraid I'm not could be old tell you that they're responsible for the damage to a moving car.
However it does sound as though they are committing the offence of obstructing the highway.