Thankfully you can still keep that memory card aside and use it for other dash cams.
Also with how memory card prices are trending📈. I'd say buy another Viofo memory card before prices go up more. You'll find it useful for troubleshooting, and you'll eventually want to use a new one anyway after a year or so of use with the previous one.
Personally, I take out the memory card from my A329S every so often to take a look at the locked videos, and I have the spare one in just in case something happens to my car during parking mode.