True.

Seems true in the VI--however the VINP has its own regulations. Here's an old article from Tradewinds in '06:

Enforcing Federal and Local Laws: No Drinking or Passing on VINP Roads

Written by Jaime Elliott   
Monday, 27 February 2006

Despite the absence of “no passing” striping on the roadway and lack of “no passing” signs, drivers on the North Shore Road who pass another vehicle will be pulled over by V.I. National Park Law Enforcement Rangers—even if there is no place to pull over.
National Park Service Law Enforcement Rangers are authorized to enforce both federal and territorial laws and regulations, including no passing, according to the VINP Chief Ranger Steve Clark.
Even though some territorial laws conflict with federal laws, rangers have the ability to enforce both.
Federal Rules Enforced?“We’ve always enforced federal rules and regulations as they relate to the operation of motor vehicles,” said Clark. “This is nationwide. These rules are enforced in every national park in the U.S.”
Improper passing falls under the federal statute of unsafe operations, which basically covers any dangerous driving act, according to Clark.
Rangers are entitled to issue verbal warnings, written citations and make arrests for offenses, he added.
Another federal law that is enforced on roadways in the VINP is the open container law, according to the chief ranger.
Although there is no open container law in the V.I. Code, which allows motorists on territorial roads to have open containers of alcohol, don’t try driving on the North Shore Road with an open beer.
Although alcohol is allowed on VINP beaches—as long it is not in a glass container—motorists are not allowed to have open containers of alocoholic beverages in a vehicle.
“No open containers are allowed on VINP roads, whatsoever,” Clark said.

i'm confused... this article references "national park" roads so i understand most of stj would be effected but what about other roads in the VI?

I took it to mean that within the VINP, open containers are not permitted in vehicles. The rest of the areas of the VI have no regulations restricting open containers in vehicles. But then, I'm not a lawyer or a law enforcement officer. I also don't drink and drive, even where there would be no law against it and I'm always glad when others don't either.

National Parks are Federal Property, Federal Law Applies in and on their boundaries. All other lands come under VI Code. So if you are on a road within the Federal Park System Fed Laws apply.

I would hope that anybody traveling anywhere , not have an open container at all.

Wow, Connie, you're going to be surprise when you're here, then! I'd guess that a good ten percent of the drivers have a drink between their legs at any given time...it's very common and very accepted here...just don't drive when you've had too much...the only DUI's we usually see in the paper are from when people have had accidents...that's pretty much the only way to get a DUI here...hit something...

Drinking and driving may be common and may not be illegal, but laws are enforced in a rather haphazard manner. I know people who have been stopped and told to get rid of drinks. Also, if the police decide to have a road check, like they did one weekend this summer, you could end up in the hoosegow. Let the drinking driver beware.

East Ender,
Always had trouble trying to spell "hoosegow ". Thanks!

Luckily for me I quit drinking and Joined AA almost 3 years ago!