This seems like a paramedic’s nightmare:

Police said that in their investigation they learned that the people inside the car were dressed as zombie costumes and they were headed to a party at the time of the crash.

Yeah, a likely story.

Sgt. Greg Stewart said people who witnessed the crash initially thought the victims’ injuries were much more serious, because of the zombie costumes.

“We’re glad that everyone is alive, despite being ‘undead’,” Sgt. Stewart said, referring to the costumes.

I think that this was just a probe of the defenses, myself.