I screwed this one up...(I think)

[GPC2]

2nd & 10 for A on B's 40-yard line. A gains 8 yards on a running play and is tackled in bounds. The LJ calls DB unsportsmanlike conduct on both A&B, with B being first. I was R and we marked off both penalties and played 3rd & 2 at B's 32.

When I got home I tried to find out if that was correct or not, and I think that A should have been awarded a new series by virtue of B's unsportsmanlike conduct penalty advancing the ball beyond the line to gain. So I think we should have played 1st and 10 for A on the 32 rather than 3rd & 2 for A on the 32.

5-1-2(a) says: After a first, second or third down, a new series of downs shall be awarded only after considering the effect of any act during the down and any dead ball foul by B.

Any thoughts?