Theoretically, the way the walls are designed and built is to prevent fire inside your walls. Drilling through the walls to route that power cord defeats that function, and is a clear fire code violation. The landlord must install a proper outlet to support that fridge.

How would YOU like to have your home burn down, only to find out afterward that there was a Code violation that caused the fire and, so, insurance doesn’t cover it?

Typically, fire inspectors don’t just go into a home and inspect it unless they’ve been notified of a potential violation, or their approval is necessary priot to final sign-off. The fact that the housing complex did the work is not final authority, but the fire inspector IS.

There are temporary installations that utilize an extension cord, and may be plugged in for a day or so. There are permanent installations which means the utility is structurally part of the house and will never be removed, even if you move out.

A freezer is semi-permanent, meaning it will always be there while you’re living there. It’s highly unlikely that it will be removed in a day. As such, temporary installation methods are unacceptable. The more electrical connections, such as an extension cord, or especially multiple extension cords, the more possibility of heat caused by those connections and potential fire risk.

A power strip, power board, surge protector, whatever you want to call it, is a temporary hookup device. It’s a violation of Code. Even for a 10-minute hookup for, say, your power drill, they’ll still call it a violation. You unplug it and when they’ve signed off, you go back and plug it in again to finish whatever you were doing. For your freezer, though, they will need to inspect that the power strip has been removed, the drywall hole has been closed, and that the freezer is properly connected to a legitimate power outlet.

For more information on Building Codes, you can check this site.