I live in Arkansas and placed a big DIY order on July 22nd with RTS Vapes as a test and it was delivered yesterday no issues. I ordered 2 gallons of vg/pg, 1 liter of nicotine, bottles, flavoring, etc and nothing was confiscated or opened.
I think a good majority of people are more concerned that UPS/Fedex Ground will open and/or confiscate packages since they do not need a Federal Warrant like USPS. To test this theory, I had the order shipped UPS Ground and I asked RTS to make sure the shipping label had literature related to vaping to see what would happen. The shipping label said "From: RTS Vapes/E-Cig Supplies" in bold font and arrived with no issue.
Maybe it was dumb luck that it went so smoothly, but I feel confident I can continue to order my DIY supplies without issue.
I've been awaiting an innokin Disrupter I won on here a while back that should have arrived by now, I'm starting to fear it won't reach me. I'm staying positive though as I never had tracking information to begin with. It's good to hear you got your order smoothly.