Cash crusaders unprofessional behaviour

I witnessed an accident involving a delivery van and an eldish man. The man did his procedure to come past the man, but as he passed another vehicle came from the fralmost causing a head on collision the old man tried to swerve to miss the head on and caught the side of his car on the back left corner of the metal towbar, the driver of the delivery vehicle was in the wrong as he was parked in a non loading zone, 3 managers came out and tried to gang up on the uncle so I stepped in, and now because I'm a witness, the one man threw in my face I do drugs as to which I laughed at him due to the fact that there had been 5 witnesses and 4 cameras facing the direction of the van. I showed the uncle, these men were extremely derogatory and rude to the older man. I couldn't believe they actually were employed by cash crusaders.