My husband bought a new Rogue from Kline and they ...

My husband bought a new Rogue from Kline and they provided a ridiculously un-professional service.
(1) I spent only like 15 minutes to cut the deal for a new car. But they kept me waiting for more than an hour before someone started processing my paperwork.
(2) They tried three time and still did not deliver the right model, right color, right option/accessory. At the end of the day, they have to mail me the part and let me install it myself.
(3) The engine coolant oil just barely touched the minimum mark when I checked at home after 45-minute drive.
(4) The agreed to mail the license plate to my home but did nothing after 5 days. When I siad my temporary license permit is expiring in one day, they still refuse to express deliver my license plate and only agree to send via regular mail.
This dealership is definitely the worst I have ever dealt with.