Their policy is that citizens be disarmed?
Unless there's a law (depending on state law, could include you being notified of hospital policy), the policy of the PD has no force.
And why on earth would they need any info about you, let alone your weight?!?!
And how did they know you had a gun in a bag?? Ever find out who has X-ray vision & reported a non-crime, wasting police resources?