I'd mention the it with the neighbors to see if they had anything happen as well. If so, it's a good bet it really was a bunch punk kids doing what little punk kids do. And even if they didn't, if there was a party down the way it's still probably what it was. It's hard telling if someone would try B&E so close to a lot of people.
No one was hurt in the end so it ended well at least, and you discovered some things to work on before you had to work around them under pressure.