When I coached our school had a policy on head injuries. If a player had done what the BU kid did he wouldn't have been allowed back on the ice for the rest of the game because of an obvious head injury. He'd have to pass a concussion test first (done on a computer). Doesn't matter if he had embellished the incident or whatever.
The NCAA needs to get a policy so things like this don't happen. At least have the kid sit out the rest of the period so crap like this doesn't happen.