Adjustment of Status - I-485

Hi, My husband and I went for our interview yesterday and from my point of view I think we did pretty good. This morning however, while jogging I saw an unknown car parked in front of our apartment and a woman with a note pad and a pen kept looking at me and scribbling down some notes. I pretended I was still jogging and jogged right next to her car and sure enough, she was still taking down some notes and watching me. The situation was already creepy enough but the minute she noticed that I was looking at her, she put down her pen and paper and drove off real fast. I think that female bas **** was sent by immigration. Has anyone ever experienced this!