I would mandate that the makers of the locator beacons include a "self-destruct" feature that can be activated by rescue personnel.
If they don't want the "self-destruct" feature they can equip the unit to deliver an incapacitating electric shock to the idiot user (also activated by rescue personnel).
The third and final option is to equip the unit to inject the user with a syringe full of testosterone.
I am afraid that they will sue you for the growth of extra body hair and hoarse voice.:-)
Make them single-use only. Push the button just one time, and the whole unit needs to be replaced, not repaired.