Have a question on what load limits mean?

I bought a crossfire last night. My wife and I are bigger people. We are more then 415lb load limit rating. I had no idea this was there until I had a blowout today (yes I know the blowout was probably not due to load rating, but it caused me to find the information).

Well long story short, I am now worried about driving this car. Should I be?? Should I go fight with the dealer to try and get out of my contract?


Michael