Hello,
I've spoken with Richard about this whole thing and he was misguided by inaccurate information from a higher up, so just to clarify we couldn't find the rule that was mentioned to Richard about basing there so your warning should be removed. The players that had printers though would be breaking the following rule and expect a punishment from Richard for that:
4.11 Entities - Do not store entities in inaccessible areas of the map.
Your warning will be removed.