A police property check from what you have written is a situation where law enforcement enters a home under the belief that a criminal act has occured or in the belief that there may be the need to protect the occupants of the unit entered.The property check is a term where law enforcement simply check the condition of the contents of the unit thay entered to make sure that nothing is amiss. The explanation as to why the officers entered your rental from the prior night does not make a lot of sense justifying their entry into the unit the following night.You might want to make a call to the police department to complain about what happened.Good luck.