Great to hear you have a date and can move forward another step! As far as the styloid puncturing anything - not possible. We tend to think of this bone floating in open space but in reality is layered very deeply in connective tissue, muscle, fat - loads of layers, and that will protect the end of the styloid from doing any weird poking around. I would recommend just reminding your surgeon of the ES and letting him know you are concerned about it for his surgery during your pro-op consent signing time. That way it is fresh in his brilliant mind as you head to the OR. He will having all of your imaging up in the OR and that will be helpful as well.
I will be thinking of you on Oct 17th, get good rest, eat clean and stay hydrated up until then!
Peace and all good