I have a credit card case wallet for my phone that holds 3 cards on the back of the phone. I put the Tesla 3 keycard in there and my Wifi speed goes from 10+Mb/s to .5 Mb/s. I assume this is because there is an RFID antenna in the card which is attenuating the signal. Anyone else have this problem? It's super annoying as I don't carry a wallet or keys anymore -- just my phone. I almost uniformly use my phone proximity for car unlock, but a few times I did need the card (valet or no connectivity).