A different type of drug test question

I just had a drug test, I used my friend's piss and that went just fine (temp was 98!)

I am nervous about a stupid thing I did... I had a handwarmer in my pocket from previous testing and I stashed it behind a plant in the lobby.

After I take my test. I am sent to a room to sign all the paperwork and low and behold, the cameras are up on a monitor. There are 4 quadrants and they all got video except the bottom left one which said "Video Loss". I am assuming that it was where I was sitting in the lobby because the other angles do not have the seat that I had nor the plant. Was this done on purpose to help me believe I got away with it but really didn't? Or am I just freaking out?

TL;DR: Took the drug test with friend's piss, had handwarmer in pocket, stashed it in plant in lobby, did they see me?

Surely not that diabolical, are they?

As long as there were no cameras in the bathrooms themselves, you have nothing to worry about. Collection facilities practicing in the US are prohibited from placing cameras inside the bathrooms. That constitutes "voyuerism" and is against the law. If you notice any cameras in the bathrooms, you need to report that facility to your States Attorneys Office pronto! In addition to criminal charges being filed against the facility, the aggrieved donor is also entitled to civil damages as well.