I have not had anything like this happen. Quite to the contrary, my vaping has been completely accepted at work, at my desk even.
What I would have when I was asked for the e-cig documentation, I would provided it, along with Michael Seigels report and some other documentation from the CASAA website and a small bottle of juice (one that had appropriate labeling). I would have sat with the safety officer and thoroughly explained to him what it is, how it works until he was simply bored to death dying to get me out of his office.
Companies are taking safety very seriously lately, mostly due to worker negligence and disregard for safety protocols. I do not work in safety, however I can fully see the challenges they face trying to keep employees compliant. I can imagine that seeing someone "smoking" something as alien as an e-cig would prompt further questioning, they are just doing their job. Think about it, we now have people snorting bath salts for crying out loud!! Who knows what else is going on? Seeing a PV for the first time definitely raises eyebrows, especially if it some sort of modded unit, and we are talking about someone whose sole job is to watch for safety issues. Him being a little proactive in providing all of the info when first asked might, and I say MIGHT, have circumvented being asked for drug tests.
I had a customer tell me that where he works they have a designated smoking area. One day the safety inspector saw him using his E-Cig amongst all the smokers and approached him about it. The next day he had to provide the documentation that came with his E-Cig. In the next two weeks to follow he was called in three times to submit to a drug test. After finding nothing in the drug tests he was required to provide a bottle of E-Liquid to the safety inspector so they could send it out for testing "to make sure there are no illegal chemicals" in it. Do any of you know anyone else that has had to go through this in the workplace?