Write to a congressman, explain you are going to track his cellphone like you could any other american, for science, and say that if he/she is not ok just reply

Write to a congressman, explain you are going to track his cellphone like you could any other american, for science, and say that if he/she is not ok just reply your email in 48h (or whatever is the SLA they mention for a response). Done, approval granted. :)