In such situation just direct your station away from target and enable speed. No need to enable collision (too risky). If speed goes back to zero than your station crossed target`s noncollide area.

1 - red rhombus - enemy object with red circle- collision area
2 - black rhombus - your station with black circle - collision area
green circle - target`s non collision area.
When red circle touches black circle collision occurs and one or both station destroys.
If collision enabled your station will stop when black circle touches green circle.
Somehow occurred that you crossed green circle. It is possible if Collider Service went offline for a while