Turning an electrical outlet into a source of ignition takes deliberate effort.
The act of plugging or unplugging a device for instance.
I’ll give you that it’s far less likely someone will turn that outlet into an ignition source if it’s got tape over it…but the carpet in your hallway Is more likely to provide a source of ignition than an unmolested electrical outlet.
Can you tell us why you should unplug your fridge/freezer?