Made my 3 kids and wife wait when we were told to ...

Made my 3 kids and wife wait when we were told to be there at 4. We arrived at 3:50pm noticed 3 vehicles in driveway apparently cleaning crew and still at 415 trying to get in. I spent $1500 for a 7 day rental and have been driving for 6 hrs with 3 screaming kids. Why can't anyone tell me that before I get there that we would not be able to check in at 4. So I call management and they said there is nothing we can do. Wow no apology. Basically deal with it. Don't waste your time renting from this place, there best interest is does not seem to be us,thanks for the headache. It's now 4:45 and they just now left.