This thread should have been titled "learn to drive before buying a new car". Leave the crack in the bumper, that way people will know not to park too close...
Seriously though, accidents happen, here's a link for the best price
EX sedan, right? It's part number 1, 200 bucks +paint (maybe), I'm not sure if it's the A80ZZ or A90ZZ, your best bet is to call them and ask.