I pick them up, but I make a Navy Seal with a hand grenade in each hand, pin out, and a loaded MP5 and an 870 with flachettes and an LAV with a Bushmaster pointed out them following--plus a Stealth bomber with a load of Durandal runway busters above. Then I pick them up--if they are dead.
The only time I have picked anyone up was when there were two of us. Then we let the guy ride shotgun and one of us sat behind. He told us bullshit 'nam stories, so that was fun. One other time me and another guy picked up a girl that told us all of her problems--and they were too much, so we booted her. That pretty much cured me. I'm more worried about listening to people's problems than being assaulted by a Scooby Doo looking nut.
I do help people that are broken down when it seems they are in actual distress and not meerly inconvienienced.