[Dave]

To me, your grills don't look too bad. If you want to try to straighten them, use a heat gun or hot air torch. Heat the back side of the grill up just enough to move the bars back into alignment with a flat tip screwdriver. Do each bar one at a time, then let it cool off a bit before starting on the next one. Move the heat gun around so the plastic doesn't get too hot. If it bubbles, smokes or starts to char, it's too hot. The heat may discolor the plastic, so it may need a coat of paint afterwards. If it doesn't discolor, then use Novis scratch remover followed by plastic cleaner to bring back the shine.