We are a private organization there are signs posted, I'll gladly take a picture if u insist, there's info on the website, and we I recall an idividual asking if he could carry and people above me told them to put it in their vehicle.
That's great. I usually don't ask if I can carry where I go. Ergo, no one told me. The law doesn't require that I ask. I was not informed about your rules. You have cited the private property rules when asked to cite the law. Private property rules are not t"the law" -- IE: there is no criminal sanction behind them. As DrTodd noted, I was not asked to leave, nor saw the sign, therefore there was no criminal trespass as there was no
mens rea.
Being you are new to the forum, you might want to brush up on what is a law and what isn't before you proclaim there is a law against something next time. Also, you should get used to citing yourself when you say "there is a law". These citations typically take the format of "MCL X.X" as in Michigan most local gun laws are preempted by MCL 123.1102. You should probably become an expert in
Michigan Laws regarding ownership and carry of a gun particularly handguns as most of us on this forum have. Amongst those you should memorize MCL 123.1102 (cite and words) as it is our strongest carry law in the State of Michigan. Treat the site/PDF I just gave you as your carry bible.
That all being said, the next time my family wants to go to the Henry Ford Museum my household will be sure not to attend. I'd hate to support an anti-gun organization and I'd hate to disrespect your private property rules. You can pass that along to your management.