I would've salvaged it. It's not chewing tobacco, big deal if there were a few bits of glass in it, they have no flavor. I would've reserved a filtered cob for it just to be sure I didn't suck any fine glass particles into my mouth, and to be able to toss the pipe later on, and I would've stuffed it using tweezers and a tamper to be sure not to get any shards in my fingers.