Your word versus their word most likely, chances are the truck driver was probably not eve aware of it.
I have experience of something similar although much scarier, I was driving a small vw van on a dual carriageway and overtaking a large lorry in the "slow" lane, I had just passed the rear of the lorry and noticed the lorry switching into my lane, before I knew it I was pined against the central reservation with a break in the reservation coming up, I slammed the brakes on just in time to end up.behind the lorry, I followed it long enough to take its number plate but was in shock so pulled off dual carriageway and phones it into my head office, the lorry driver denied it even though it would have damage on the side.