Just purchased from them
I just ordered the usual AKZO primer and an Alodine pen from them. I put 'Zach's Shop' in the company line when I registered for an online account. They approved the account in a few days. I ended up getting a quote through the agent that approved my account, hoping for a little better price. It was exactly the same as online, so don't bother. Paid with personal credit card, shipped to a residential address, and everything went through as excepted. I actually don't think they ever charged me for the Alodine pen, which shipped from New York instead of FW.
I think they probably look the other way on the 'business sales only' policy, but if you straight up told them you were private their hands may have been tied.