I know that some guys are cutting back on entry in comps for this reason - our club arranges delivery by the member who lives nearest to competition drop off sites and is willing to deliver entries. We haven’t figured anything out yet for NHC Finals. That will require shipping, so the legal measures are worth exploring. A few years back there was a mom and pop shipper that had some kind of license to ship alcohol (they dealt with a lot of commercial wines sent out as holiday gifts, etc, but sadly, they couldn’t compete with the big boys and they closed up 4-5 years ago.
When they shipped it they put a special sticker on the outside of the package identifying it as alcohol - I always wondered about the diversion of items at the receiving end....