I did some (OK a lot) of ordering over Labor Day. I ordered a tank and a dew coils from MVS. I know they use Veratad, and my order went through just fine requesting USPS first class mail as it's cheap and they're nearby, so it's essentially overnight shipping for me. I had a few orders with other vendors which also use Veratad without a problem. I received the package today with an adult signature required. I still paid the low USPS first class price.
I don't know if MVS is going through some growing pains with Veratad and age verification, and covering themselves every way possible, but my order was processed quickly and without hassle.