Long time ago I've owned an 01 Acura CL-S. Same thing happened with the mirror. Acura community at the time found that if you contact the manufacturer of the mirror directly they will replace it free of charge. So I filled out a warranty claim with them and sent the old one back. Got a new replacement. Although at the time my car was much newer than our Zs now.
But I do wonder if something like this is still possible to do. If I remember correctly that mirror "recall" was basically due to the liquid in the mirror being hazardous/toxic.
Just found this link
https://www.mirrorjohn.com/How_They_Work.php