What a horrific thing to go through. Like Tres Leches says, wear gloves. A word of caution. If there are residual drugs in/on anything, be careful of how you dispose of it; you might get in trouble for disposing of hazardous waste incorrectly. If the police didn't seem too wound up over this situation, maybe you can ask the fire department to help with disposal. If they don't actually do it, they will know who can. The last thing you need is to get in trouble when cleaning up her mess.
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.