It doesn't sound like LSD to me either, but all I can say for sure is that I took a whole bunch of stuff which people told me was LSD, back in the day, and that it affected me differently.
edit: skepticism significantly increased, now that people are talking about LSD causing reduced inhibitions. seen and experienced extraordinary counterexamples. it's not alcohol, folks.
Starting a fire alarm etc. just means the guy was using the reduced inhibition to go ballastic. Just stupid really. Don't go blame the stuff for that.
>400 is high. up to 150/200 is low - can function normally. between 200/400 is hard to function normally. above 400 you really kinda can't, best just lie down and let the colors wash over.
200µg is certainly enough to perceive the world radically differently—so, very high to a sober person. However, it's very low on the scale of LSD you can safely ingest.
Either way, the dude had more going on than an acid trip that day.