I find the odds that a 20ish woman with an 8 year old child in the car would be the one chasing the cop to be infinitesimally small as to be non-existent. Stranger things have happened, but I find it much more thoroughly plausible that a man with a badge and a gun would be the one with the requisite cajones to instigate this situation.
My son, a real live Marine, has dated such a crazy woman. And I mean, crazy. Hot? Yes - and crazy sometimes as well.
A screechy, bitchy, (add your own description here) out of control woman is perfectly capable of running anyone down.
Note to self - "mom" is in her "20s" Lad is described as eight years old.
Note to self - do math
Mom became mom at 18, she is 26.
Mom became mom at 16, she is now 22.
Interesting maths, yes?