Extreme bump steer??

rambo

Hey guys, I recently bought my 2014 touring/sport 370z with 10,000 miles.
What I noticed after driving for a few weeks is that this car has an extreme amount bump steer. It's so bad that I'm sure if a cop were behind me he/she would think i was driving under the influence. The car just follows the bumps in the road.

I know wider front tires can cause this but I'm coming from a lowered 350z with 255 front tires and never experienced this.

I bought the car from Carmax and they supposedly aligned it when I brought it back to complain. No difference.

Any ideas? My only thought is that Carmax either gave it a **** alignment or possibly may have not aligned it at all? Or could the tires (OEM Bridgestones) be the problem?

Also something I just remembered is if I'm at a stop, turn the wheel all the way to the left and slowly accelerate, the tires seem as if they're slipping. (imagine making a u-turn in a cul-de-sac)