Power Supply Switch Not Working

So I just went to turn my power supply switch to off since they will be messing with the power today and I didn't want power to keep going to my pc and stopping while at work. When I flipped the switch on the back of my power supply from on to off, the motherboard lights stayed on, I waited a second to see if the RGBs would go due to some residual power in the PSU or something and they stayed, so I pressed the power button to try and boot up my pc. And it posted.. I flipped the switch on the back again a few times to make sure, and nothing happened. Both set to on and off the pc ran.. I took a flashlight and checked to make sure I wasn't hitting the power type from 120-220, and it was indeed the power switch, either I don't have the switch for 120-220 or its one of the recessed slider things that you can't accidentally hit.

I should still have a warranty available but I'm curious if I should bother with it or if it's fine