didja think to call the pd or investigate or did u just let it go off all night?

It is your fault that you are sleepless. When you first heard it you should have phoned the police. Posting here hours later is not going to help much.
If this keeps up one of these days someone is going to report a house fire here instead of calling 911.

Police investigated. This is most likely a faulty alarm in an unoccupied building.