Haven't seen any response from you and do hope you deleted the key card from your car. Safest thing to do.
This is the key card holder with key ring I bought for valet purposes when I got my Model 3 <snip>
https://www.amazon.com/gp/product/B07B9KJSCF
For anyone thinking about getting something like this, there are so many of these things that are way overpriced to take advantage of unsuspecting Tesla owners. Just search for "ID card holder" instead of "Tesla key card holder" and you'll pay a fraction of the price.
If you need extra key cards, Tesla's online store has them in stock. 2 for $25. I picked up a set sometime ago just to have on hand in case my husband or I lost ours.
Model 3 Key Card
When did they increase the price? My service center gave me two extra without charge about a month after I got the car (spring 2018) just because I asked. I remember they started charging $5 each that summer and had no idea it's more than doubled since then.