I know it is just a comic strip, but I was actually angry at the other characters, thinking "for fuck sake! Get him to a hospital! This is serious!" Is there a word for comically horrific?
Wait. Where do you get the impression that they aren't going to take Ray to a hospital? I mean, sure, everybody is stoned so they're not on their game, but they seem to be acting about as responsibly as one could expect (Teodor asking questions to check Ray's awareness, etc). More importantly, Beef has emerged from his plexiglass chamber to face the stoners, so he's acknowledging in his superior state of sobriety that There Is A Problem. I'd be surprised if the next strip didn't take place in the hospital or on the way. Either way, I trust Onstad to do something funny which will ultimately bring the strip back to its status quo.
Bleeding from the ears isn't THAT uncommon with head trauma and doesn’t really suggest permanent brain damage (the continued spurts are unrealistic and clearly just for comic effect). Could just be a broken nose and a concussion. If this arc strives for realism, he'll probably lose some memories of the event but ultimately be okay. I had a (human) friend in a similar situation due to a soccer ball, which I'll admit isn't as hard as a softball, but still.
EDIT: Actually, don't people usually get hit in the back of the head to get the bleeding-of-the-ears thing? I'm definitely not an expert on this. But I doubt Onstad is, either.