I did absolutely no paperwork when I shadowed surgery, at all. I just showed up and followed the guy, scrubbed in, and stood in the corner and was told not to move to any other part of the OR. I was able to see the surgery via the headcam.
One time I made the very foolish mistake of moving to another side of the OR and my scrubs brushed against some sterile table. Almost immediately, the anesthesiologist and charge nurse yelled at me to back away and "What the hell are you doing???" Thankfully, this was before the surgery started but while the patient was being hooked up and everything. I started apologizing and got little sympathy. The anes resident came up to me later and patted me on the back and said "don't worry man, it happens." Instantly became my favorite guy in the room. Lucky I wasn't thrown out of the room, they had to get a new sheet for the table or something.
OP, was the surgeon an older gentleman? I imagine the older doctors are more old-fashioned and are less uptight about regulation and malpractice. However, either way, this seems beyond illegal and dangerous. But then again, that's awesome that you got to do that.