Plus, I know the things I experienced were NOT some dudes screwing around! We watched the staff leave! Anyone who works in the hospitality/service industry knows it's hard work. An extra day off is welcomed. Plus, how would they stage the greenish light?!? I got to know the manager, she is no prankster.
Meh... you skeptics drive me crazy.

On a related note, I have never had any paranormal stuff happen to me before or since
I know a few magicians, they do not seem like pranksters either...oh...wait...
Did you do a rather extensive searching of the Inn after all of the staff "conveniently" disappeared? If the Inn has a reputation for being haunted it is in the best interest of the staff to keep spreading those rumors because it will continue to draw business. Hell. your "Julie" could have even been complicit in it all.
They also rely on the very same rationalizations you're using to contribute to the idea that the place is haunted. They don't have to convince you if you can convince yourself.
I have seen UFOs in my life but I don't know if they were alien or not.
I believe in UFOs.
There are objects that are unidentified that happen to be flying. Whether or not they're actually aliens is a different matter entirely, but it is highly unlikely.
How would you come up with that belief?