Thanks for all the responses. Trust me, I would peal off some rounds from any of my several firearms IF it wasn't forbidden by the covenants out here. Last thing I need is a busy body home owner's association breathing down my neck... Though, I was in tears over the whole thing, I love my bees.
As for confronting them, the more I think about it, I think I will take what was suggested here and just go over there to "warn them" that someone has vandalized my property, and that they, as neighbors should be aware of it. I also do think I'll call the police and put in a report, though I doubt more will come of it than that since we have like... 3 police officers in this one horse town and even if they did come out, these folks, being behind my property probably wouldn't see it.
As for the game camera, that was my husband's first suggestion. We'll be going to the Microcenter this weekend and seeing what they have so I can set up a "bee cam".
Since Tuesday, nothing else has happened and I can only hope that they got their butts stung so bad that they're afraid to come over that fence again. Maybe my bees are a lot more frightening than my two, push over, couch potato Dobermans will ever be.