They did not do that. And the police are not entitled to do that for them absent a request from the businesses, which they did not get.
You are confusing your opinion that the people shouldn't be there with a legal conclusion that they had no right to be there even if the property owners didn't mind. That legal conclusion is incorrect.
If they were doing illegal acts on the parking lot, such as using drugs or fighting, they could be arrested for that. But even if they were racing around the parking lot, which I rather doubt, traffic laws don't apply to private property.
If you want to be angry at anyone, be angry at the businesses for not trying to get rid of the crowds. But there's a reason why they didn't do that. They were making money off of them.
For people to park when shopping at K-Mart, something a crowd of 400+, gathered to hang out and race, were not doing. The fact that there is a parking lot there does not imply people have the right to use it for whatever they want. It seems that is what you think.
You are confusing your opinion that the people shouldn't be there with a legal conclusion that they had no right to be there even if the property owners didn't mind. That legal conclusion is incorrect.
400+ people present, after dark, some of which were breaking curfew, some of which were meeting for the purpose of other unlawful acts - K-Mart, or the property owner, does not even have a legal right to allow those people to congregate. I guarantee there are numerous State, city and county laws being violated by the crowd. K-Mart has a parking lot which is there for people to park when they shop. K-Mart can't have a parade at 12:30, 1:00 AM in the lot. They can't have a party. Likewise, no once else can either. We have nuisance and noise laws being broken for sure.
If they were doing illegal acts on the parking lot, such as using drugs or fighting, they could be arrested for that.
Or breaking curfew, or breaking noise laws.......
All I am saying is that the presence of the crowd was reason enough for the cops to enter the property.
YES, THEY SCREWED UP!!!! THEY SHOULD NOT HAVE ARRESTED THOSE WHO WERE NOT MINORS!!!! EVERYONE ELSE SHOULD HAVE BEEN CITED OR TOLD TO LEAVE.