As for her trip to peek at the set, here's her account:
They are filming on set 4. There were lots of trucks and trailers everywhere. The crew set up a white tent outside for Rob. I'm guessing to shield from the cold cause it was freezing out there. Rob walked into the tent. I didn't get a pic of him walking to the tent because I was too busy screaming and saying to my kids "that was Rob" repeatedly while they looked at me like I was crazy, lol. The very blurry pic of the person in the tent in black is Rob. The pic where his body is standing outside of the tent in a black coat and jeans, you can totally see Rob's feet, lol. After a while we were spotted by Rob's bodyguard. Once spotted, Peter F. came running out of the tent (in blond wig) ( my son and I said at the same time "that's Carlisle" ) running out of view... followed by Rob. Rob looked like he was skipping rather than running, lol. A crew member then came to my vehicle and asked if we needed something. I told him we were visiting, but were now leaving, lol. We also saw Elizabeth R., Nikki R. (in blond wig), Ashley G. and lots of crew members.
Full fan encounter & article at the source! You can view the photos she took from the set here !