Here's more on why this is a bad idea:yeah I know car exhaust is worse but you can't run your car in the national park restaurant either.
National Park Service Bans E-Cigarette Use Where Smoking Prohibited - US News
The memo says the decision was taken “out of an abundance of caution in light of the scientific findings and uncertainty to date, and in the interest of equity.” It amends a 2003 policy document – last revised in 2009 – that bans smoking inside the service’s buildings and vehicles and allows park superintendents to further restrict outdoor smoking. Parking lots and sidewalks are generally exempt.
Jeremy Barnum, a spokesman for the Park Service, says if a park superintendent now decides to restrict outdoor smoking for reasons such as preventing forest fires, that restriction also would apply to electronic cigarettes
Gregory Conley, president of the American vaping Association trade group, says the new restrictions are a bad idea and should not be enforced.
"Outdoor smoking bans in parks can at least somewhat be justified by the risk of fires, but vapor products pose no more of a fire risk than a cellphone battery,” he says
