GPS tracking would not surprise me.
As much as we live in the now. So much of life is reflected in the shows and movies we watch of the future.
Does anyone remember the show Sea Quest?
On the first show of the second season the Captain was fined for speeding on his motorcycle.  He was told via radio transmission in his helmet that he was speeding and fined so much money and it would be automatically taken from his bank account. 
I was floored to see it then and so it doesn't surprise me to hear about it now.
There were several new tech items on that show that are real today.

Just observation,

WhtWolf,   Sherri