The only purpose for the ticket, as I see it, is to protect the woman who hit him. It protects her, somewhat, from lawsuits and establishes a claim for the damages to her car. I really don't think it is a big deal...
It isn't really a big deal.
I'm no lawyer, and I don't play one on TV, but an unsigned ticket is proof of nothing but an accusation of some violation. A cop's report, eye witnesses, etc., should serve to protect the driver. To me it seems stupid and represents the lack of common sense among some LEOs to issue a ticket to an injured person that they would never issue if he hadn't been hit. Too many laws and rules and regulation and not enough common sense.
Besides, we've all heard stories of criminals breaking into a house and getting themselves shot and then suing the homeowner. The B&E conviction not withstanding, the homeowner still winds up in court. If that's the case, I don't see how a $5 ticket against the dead guy protects the driver.