Player spawned ERT's have no ferry access- who cares give them teleporter access instead!
Created by: mrpain666
If Im not mistaken players have the ability to "self spawn" an ERT under code red.
If so, it's entirely possible for one to show up when no admins are on or able to help them, and thus stranding themselves on Centcom as they seem to lack the access to interact with the shuttle console themselves.
This occurred on Box, if it matters. The problem is also probably universal though.