Can 'take care' be used negatively. Speak to this guy who's very casual when parting but this time he said 'take care'?

[Anonymous]

Sometimes he never says bye even on the phone, rarely he does anyway. Usually he is very blunt and cold. This time he said take care

[Guy13]

That sounds like a "Later"... in another life kind of Be Safe?

[LazerBean]

I'm sure it can be, but I would not assume it ever is and I have never heard it used in that way.