Is there more than arrest, Terry, and freedom?
I recently ran into a situation at a living quarter where I was never told I was under arrest or to be cited, and after waiting a considerable amount of time where I was not being suspected of anything or even bothered with that I had absolutely no interest in being in this quarter any longer, almost reaching the dooring after announcing that 'I do not believe I can be detained here and I wish to leave', only to have a police officer assault me and repeatedly push me back, continuing effort to block the exit path afterward.
I believe I tried to leave again in another 5-10 minutes, with the same result, being told I could leave after 'the investigation'. This 'investigation' took considerable time and there was no warrant to be on this premises (I believe that the resident responded to a knock and the officers consequently barged in.)
I don't see this as exactly inline with what you're asking, but I consider it a blur between custodial detention for licit reasons and a 'free to go situation'. I made to make physical effort to resist this detainment having read case law in the past that meakly saying 'no' in situations like 'roadside search' is not sometimes legally considered 'considerable resistance' or some hogwash (I'll have to find some court cases to qualify this...as if 'no' was enough for rape in sex, but not for raping our rights...)
(Edit: Maybe I'm being retarded right now...Terry is just for weapons frisks, I thought it had broader implications, blah. No searches or request for searches of my person were made. So is there a 'temporarily dentention without freedom to go' that's called something else?)