Agreed, if it’s maintenance related then I would venture to guess the SC will charge you.
Maybe try re-charging with refrigerant? The ac system can be recharged similar to an ICE vehicle, the only hurdle is that the recharge port is under the frunk, so you’ll have to remove the frunk bin (not too big a deal 6-7 10mm bolts, plenty of vids on YT)
I would recommend a can with a built in pressure gauge to monitor the fill level and prevent overfill.
Might cost you around $50-60 for DIY as opposed to $300+ at the SC if it’s not warranty related.
Hope that helps!