I am left to wonder at the chain of command and who was 'detailed' to pick up the 'friendly weapon'.
"Excuse me, could I get some ice?"
"Sure officer, how much ice do you need?"
"Oh....just enough to keep this dick cold."
"Good God, officer.....where did yo get that dick? Look, Sarah! He's got a dick in that baggie!"
I can just imagine the locker room frivolity and good natured PoPo antics that poor schmoe will endure for being the sucker detailed to pick up the severed dick. They'll likely refer to him as the 'dick sucker'.