So, I guess, according to Flanmedic51 standards, this is just another way for police to catch criminals.
If any of these people know anything at all about their 4th Amendment rights, there will be lots of lawsuits filed over this one.
Here's a pretty good analysis and good comments:
I wonder what would have happened to those of us who routinely carry one or two loaded handguns on our person/in our vehicles?
Any rights attorney with half a brain will see this incident on the news and start trying to contact those persons detained to file lawsuits.