Sudden noise while environmental controls are on

I have a 2024 Prius Prime with about 30k miles. Yesterday as I was pulling up the drive, I suddenly heard a very loud buzzing noise coming from the engine compartment. The change was drastic enough that I immediately stopped in the drive and my passengers asked "What is that?!?" I was in EV mode at the time, so I crept forward into the garage and shut everything down.

I had never heard anything like this prior, so I started searching the web and I think I found a video which captures the sound accurately here. Unfortunately, only the first 2-3 seconds of the video has the sound. In my case, it stayed on until I shut the car off. I can try to take a sound recording if there is interest.

After doing a bit more reading, I wanted to try to see if I could isolate it a bit by turning various functions on and off. I was able to determine that the noise went away if I turned off the environmental controls. As soon as I press the "Auto" button, the buzzing noise returned. My guess is it's the heat pump compressor as it's definitely coming from the engine compartment and not the cabin blower fan.

So now my question for this esteemed group: Is this compressor also part of the liquid cooling for the EV system or is it only for environmental control? I'm trying to determine if I can still drive it until I can get it in the shop or if I need to park it due to the chance for additional damage.

 

I was afraid of that. I have not had the car on long enough for it to display an error code. In fact, I haven't checked to see whether the A/C still cools, so I don't know if it's completely dead or just starting to fail. Do you think it's safe if I run it in ICE (HV) mode?