If the player is a good Stealth Boy, he can try to get through the Parking Structure's myriad of traps without setting them off. This will be a combination of outdoorsmanship and traps skills. The player can opt to disable traps and discover where traps are, thus avoiding them. Getting through the Parking Structure without setting off a trap will result in bonus XP.
Character type completion breakdown
Combat Boy – It's possible for combat boy to get through unscathed as long as his traps and/or outdoorsman skills are good. If not, he's going to take a few cuts and bruises through the structure. The traps are not lethal by themselves, but they can be accumulatively.
Diplomacy Boy, Science Boy – Can't talk your way through traps; they won't listen. Same situation as Combat boy.
Stealth Boy – This is Stealth Boy's shining area. Make sure he has good trap and/or outdoors skills.