Originally Posted by CXR89
...Under these circumstances has my friend done the most he can to legally do to uphold his responsibility in an accident like this. ...
Your friend notified his 'victim' of the incident. The 'victim' declined to take his info. Your friend has no obligation to force 'victim' to take the info.
Hopefully, your friend got the name of the guy (first and last) and maybe took a cell phone pic of the damage. The cell phone pic can be sent to his e-mail account to document date and time.
My only concern was the property owner would pursue this at a later date and try to inflate the damages. This is why the pic is important.