High heels are generally banned for flight attendants due to the potential of damaging the aluminum aircraft floors.

You just described the FAA's new ADS-B system that they've been working on implementing. Unfortunately it will still be quite some times before the FAA manages to get their NextGen systems set up and even after the systems are brought online there will still likely be plenty of kinks to be ironed out (if the recent Flight Service Station fiasco with Lockheed is anything to go by).