Lauramax,
It is probable that you were stopped at the front desk because you were actually on your phone, so it was obvious that you had it with you. most people probably have it tucked away in their bag, so the front desk doesnt see it and cant comment. It is assumed that adults would be responsible and considerate without having to have the policy-police performing bodysearches or security checks. So, I dont blame the desk girl for following company policy, it is her job. That being said, it is not okay for her to be rude for any reason. And the manager should have returned your call. Not just because you are a valued customer, but as a general courtesy. I am saddened by how rude and impolite people are nowadays.