This is a very good and valid point.BadCo45ACP wrote:don't over look the most improtant part of that exclusion
(f) It is a defense to prosecution under this section.........
As amusing as some of the comments are, these guys ARE law enforcement officers on railroad right of way. They have been for 150 years. While they may operate within the law, the discretion they exercise is dictated by their employers, not elected officials subject to voters' will.
Although most local LEO's probably will not push it that far, the concept of "defense to prosecution" is applied AT YOUR TRIAL. By that time you have spent some time in custody and a significant sum of money. Even if/when you win the case none of that can be restored to you.
I would use considerable care if I felt that I just HAD to see that museum.