What I'd try is running out of town with a cheap new-bought car (so I can ditch it later in order to mislead anyone tracking me) to a place that's nowhere near a coastal zone or lake or small puddle, but being the paranoid I am that's not going to be enough .
I also buy those magnetic shark repellents and start wearing those shark bite proof suits hoping a mershark bite will not instantly tear it ... beacause their bite can't be that much stronger that a normal shark ... right ??
If she ever finds me in land there is a bubble sound effect in my cellphone because apparently sharks hate that noise.
Now I wait, and pray these countermeasures won't fail even though they soud silly.