The CD gesture wasn't going to be useful... the only way now is to get Animal Control over there. If they can't control the dog they will have to get rid of it.
Actually the CD worked pretty well on the landlord...I walked down to his office and before he had time to say anything, I slipped it into his Bose CD-player and turned up the volume. I left it playing like that the whole time we discussed the issue. It drove him mad and he said he'd "take care of it", whether or not that means he's making them get rid of the dog wasn't very clear. If it happens again though, I'm pretty sure they'll be evicted.
The bimbos; not sure if they listened to it or not. I'm trying to avoid them because I don't think I can keep myself civil if I was forced to talk to them right now. Either way, I felt it was truly the only way I could ever attempt to show them how loud and annoying the dog is when they are gone. They have, however, been extremely quiet since receiving it...so who knows.
I've found in previous experiences that the offending tenant *NEVER* has any idea how loud they really are...and when I've been able to prove my point, it has worked to quiet them down. Like one dude who kept playing some ghetto-ass rap music. One day he had it exceptionally loud and I had him come stand in my apartment and listen to how his sub-woofer transferred the bass right into my office. I then pointed to my 4-foot tall Pioneer speakers and explained to him that I'd be more than happy to play some cracker-ass Death Metal for him throughout the day if he didn't quiet down.
People are generally pretty short-sighted, and their inconsiderate behavior is born out of ignorance; of how their actions effect other people. Landlords, as well, have very limited capacity for visualizing problems. For things that they can't readily experience themselves, it certainly helps to point things out with visual (photos) and/or audio proof.
mrC