Well...
There's "Special Operations" and then there's "Special Operations".
The real Spec Ops refers to a wide branch within the military that includes PsyOps, SOAR, Green Berets, SEALS, Delta, PJ's and the likes. Special Operations are not to be confused with Special Forces though. Green Berets, SEALS, and Delta are all Special Forces, where PsyOps and SOAR are Special Operations. IOW, Special Operations are highly trained, specialized military units that strictly and specifically support the Special Forces.
That said, they don't go around wearing t-shirts that state "Special Forces" on them. You might see one wearing a unit shirt, but nothing like what you described.
You saw some dude that picked up a cheap t-shirt to wear about.
Decerning if he was a LEO or a whack-job might be harder to do, as I can honestly see either wearing such a shirt....
