Oh, that's f8cked up. What if you decided not to buy it? Looks like they won you over.
Anyway, a financial officer at Nissan dealership recommended extended warranty for hours even when my 20 years old daughter who decided to buy 2012 Nissan Altima coupe with me said NO, THANKS many times. She was pissed off so she got up and walked to the manager to complain that it took so long and he was so stubborn. Then the manager told the officer to shut up and finish the paperwork right away.
I had hard times with one new car dealer in the past. I was going to break his face because he refused to give my car key back after my car was inspected for a trade-in allowance. Every time I asked for it, he said "wait a minute, let me talk to my manager". That was all bullshit. I already warned my daughter about it. Now she knows. My point is that the dealers don't want to let you go until you buy their car.