body kits will be different, as the headlights and taillights on the 09 are different.

The suspension parts will be the same.

after a long trip like that there are two possibilities, the alignment was off and not tire wear is causing it to seem worse. (easy check tires for uneven wear) or the texas and florida use different types of road crowns, but both of these should show up in the wheel as well... is the wheel slightly turned when driving at speed?