What an odd situation.
While I do have dash camera's , I have been pretty nervous passing semi's as many put the Roman Chariot wheel shredders on their front wheels what is with that ??
Lesson here to me is: somebody hits me and doesn't want to show license & insurance, I should immediately dial 911 and get a cop there... (after all driver might be drunk, dangerous).
As for OP, his insurance seems lazy, knowing the plate # and truck and time of accident, there is a record of the driver (who may not actually be licensed) as the trucking companies don't send someone off to deliver goods and "hope" he shows up. It's all well tracked by the company and dept of transportation.