>>275
I think what you're missing here is that there's a clear difference between getting caught inside a location on a property you don't have right of entry to, and scouting for filming locations.
Most professionals that scout for film locations usually have permission to actually be on that property.
Additionally, anyone can print business cards these days. There's 0% credibility in stating you have a business card.
It's better to simply not lie in such situations, and not put on a fake character just to seem more credible.
Just state you were taking photos for fun. A bit of patience and honesty can go a long way.
>>712
I think it's mostly just that places stay abandoned for ages, but someone still technically has at least some right of ownership to that property.
It's as simple as wanting to sting someone for theft really, just because they can.