Bait and switch new car dealer

I went to a new car dealer where the price for a toyota in the ad was 17000. When I got there they pulled a bait and switch on me charged me 4,000 dollars more and gave me insurance I did not want and told me that I had to sign it otherwise the bank would not accept the loan. Within less than 24v hours I tried to cancel the 2500 extended warranty and they told me the can't do it for about a week. I read the GAP insurance and it can't be cancelled. I accept the gap insurance, but I am really upset not realizing that this was a scam. Do I have any legal recourse? Please help me. Thank you. - Is this your question? Add additional information