Dealers straight up lied about where I said I wanted to be.

I was at a dealership helping to buy a friend a car and I was doing all the negotiating: 1st off these ass hats had an extra 4.5k IN FEES ALONE. So I still tried to get them to drop it they fuck around and will only drop it by 600 guy then spends 30 minutes saying he’s being honest and that I need to pivot to something “in our price range” which by the way these cunts wanted a OTD price of 19k on a fucking 8 year old Cadillac with 93k miles. But anyways im not buying it he then tried to show me how their cars are priced aggressively so he has me look up a different model to show how good their prices are. I immediately found a better deal and bro doesn’t know what to do. Keeps lying out his ass before the finance Manager comes in and tries to strong arm me into the deal I’m like stfu we want this price. He steps out comes back in and tried to GASLIGHT ME INTO BELIEVING I SAID A HIGHER PRICE. Wanted to be at 18.3 tried to say I said 19.3 WHAT THE FUCK? I’ve never seen this shit when buying not only the 4k in fees but straight up lying out their ass. If anyone is in the industry would complaining about this do anything ?