Hi,    Yes we had a similar experience on Saturday night, thieves had investigated our bikes but they were locked up, the same evening our neighbour lost a couple of bikes. They seemed to scout around 3am and returned again at 5am, these are roughly the times the thieves were caught on a neighbours camera, the camera footage wouldn't be useful for identification as it was too dark.    It's really annoying and unsettling to have people enter your space, have had a bike stolen 2 years ago.     I hope you get your bike back.   All the best.  Nikki