That is… patently stupid.

Basically he smelled pot.

Thats the only suspicious thing in that chain of observations.

Literally every non-residential building has tinted windows in some way or another- it’s for energy conservation.

Every non residential and a fairly large number of residential buildings have cameras. Yes. To deter would be thieves, but mostly to show what happened and maybe whodunnit, if you’re lucky.

“Similar attire” what the fuck does that even mean? Uniformed? Scrubs? Shit. Everyone in almost every company all wear similar attire when going to work.

Usually job appropriate attire. Which means people doing the same job are going to be wearing “similar attire”.

“They appear to be wearing maintenance clothing- blue jeans, gray polo, tool belts that have [some kind of tools]” is a valid observation.

Or “they appear to all be wearing scrubs, as doctors and nurses wear” or “they appear to be wearing clean room suits”

But what isn’t a valid? “….to do maintenance or expand the operation.”

Well, you see a maintenance worker, them doing maintenance isn’t… too far a leap. But again, literally, every non-residential building has a maintenance guy. That ain’t suspicious.