> The spoiler was painted prior to purchase.

The fog lights are not attached to the spoiler/dam. They are hard-mounted to the vehicle frame. Look for an adjustment screw to permit leveling.

> Can the fog lights be mounted on the wrong sides of the car
> or upside down or something?

No.

Also, note that these fog lights will not overwhelm you with power. Even though they are name-brand OEM units with condensor lenses and cutoff baffles, they don't have much pattern to the sides, and they are truly meant for use in fog or heavy rain. Only under these circumstances will you notice them much. Of course, they do look cool. :)

~Gerald C