What a bummer. You'll be amazing to get them in shape in a week! Glad everything (mostly) is alive! Guess you need a different babysitter next time! 
That's what happened to me a few years ago. I went away for most of the summer, and one of my mom's students watched over the house for us, and she didn't even know that the filter quit working... I thought it was kind of pathetic actually... You don't hear a noise from the filter anymore, and you don't see water coming out from the tubes - isn't it OBVIOUSLY not working?That's the downside for those of us whose spouses don't really have an interest in aquariums....If I had to leave my husband in charge of mine, they'd be eating ten meals a day, never get a water change unless I called to remind him, and he would never know if the filter quit working. He asked me yesterday (after we've been together a year!) if those were real plants or fake ones in there lol.