Nope, I wouldn't have went to the aggressive stuff, either.
If I were doing the calling, I would've got on one of my "Frenzy Pup" pup howlers, and let out 1 or 2 YOY-pitched interrogation howls.
Then sat quietly for about 5 minutes...simply watching & waiting for the coyote to sneak in.
If it continued to howl back, and wouldn't commit after those 5 minutes, then I would've went to pup distress for short bursts.
Then, sat quietly for another 10 minutes, to see if it would sneak in wondering what had happened.
I've never been one to hurriedly go from one stand to the next. If I know for sure that there's coyotes nearby, I have been known to stay on stand for 45 minutes.
Since there appeared to be at least 2 of you, another possibility would've been, for one of you to stay there, while the other guy tried to circle around; get closer to where the coyote was howling; and tried to get eyeballs on him for a shot.