Do you know of any other home daycare providers in your area that you could ask if they had been inspected as well?
Other than that, someone has reported you OR could it be possible they are flagging us from our tax refunds? Expenses we are claiming? Receipts etc? Another government I know Provincial vs Federal but just a thought.
I lock my screen door and deadbolt my other door as well and don't have a doorbell. I have so many of those water heater guys who are soooo agressive canvassing this area I don't answer my door period.
Try not to worry... you passed with flying colours. I do think you were called in by someone concerned by your numbers though. A neighbour with a chip? Someone who saw you out with the kiddos and watched where you live?