Yup, I'm with riderx.
441 4th Street had a "policy" where the guards required messers to leave their bags at with security. Messengers hated it, it really sucked. Since it was totally random- nobody else had to leave bags- i pursued it. Sure enough, that wasn't building policy, it was just some crazy guards making crap up. And now, messers can keep their bags.

Moral: Always worth asking.