After acquiring a TrueCar price quote, we chose to...

After acquiring a TrueCar price quote, we chose to purchase a 2019 EXL Odyssey from John Eagle Honda of Dallas, though we live out of state. The quote specified $0 in dealer add-ons. I called the day of purchase and confirmed that there were no undisclosed add-ons. When my husband came to purchase that evening, he was told that hundreds of dollars in useless dealer add-ons had been included, in opposition to our clearly specified request (tint, pinstripes, wheel locks, nitrogen in the tires, a year-long subscription to tracking phone app, etc.). The salesmen attempted to coerce my husband into paying the new price. In order to get the Honda cash back promised, they required acceptance of a higher interest rate loan through the dealership's preferred lender, rather than a lower interest rate loan through Honda. Only during paperwork was it disclosed that our car had 600 miles on it already, which we did not expect as the salesperson implied the car had arrived in the last couple days. The day after my husband drove the car home, I noticed a flaw in the passenger side window tint that looked like a 3" scratch. I got a quote for its repair, but John Eagle Dallas refuses to allow me to have my local Honda dealership make it right. Instead the nearly impossible to contact manager argued that since we didn't pay their deceptive up-charge for the undesired tint, he has no obligation to correct the unsightly error unless we travel 1,200 miles to have those responsible for the blunder make another attempt. Additionally, the dealership neglected to apply for the car title. After a great many phone calls, during which we were told that the title was in the mail, the dealership discovered they had never filed the application. 6 months after purchase, we were finally sent proper registration documents.
I recommend:
1. Get a TrueCar quote.
2. Do not purchase from a dealer who presents previously undisclosed dealer add-ons during signing.
3. Do not take a loan through the John Eagle Honda-preferred entity.
4. Buy local. If you live in Dallas, consider David McDavid, as this dealership openly discloses their add-ons prior to signing a contract.
5. Check the odometer.
6. Check closely for damages.