Numion said:
I agree. It wouldn't require einsteins brain capacity to realize that you'd have to put a helmet and thick clothes on. Both should be pretty easy to find (either riot control police helmet, or plain ole motorcycle helmet). The one who got blood in his eyes could've prevented it so easily (well, maybe they didn't know it infects that way, but why not play it safe?).
Best precaution would've been to find a robust car, which shouldnt've been too difficult. Even a normal truck could be modified quite easily into a zombie-proof vehicle.
Keep in mind two things:
1) Not everyone has talent in tactical thinking, or the skills or sangfroid necessary to carry such plans through; and
2) The characters may well have thought of these same ideas, given them a great deal more thought than you have (since their lives depended on the answers), and rejected them.
Helmet and thick clothes? I thought the same thing, until my wife pointed out how useless they'd be. Sure, in a tight space in which you can hear the zombies coming, where they can only attack you one at a time, and where they can only attack you from one direction, riot gear is superb. But out in the open, the zombies use swarm tactics. Your thick clothes and helmet will protect you for a few seconds, until the zombies tackle you and tear them off. Out in the open, your only chance of survival is to get away fast -- and remember that medium or heavy armor slows your movement speed way down

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Helmets have a further problem: they reduce your peripheral vision and hearing. Given the way zombies fight, it's of the utmost importance to hear them as soon as possible, so that you can start making your getaway. Once they're on you, the helmet's not going to protect you for too long, especially if they're in a pack.
Reinforced car? Great idea, if you can swing it. First off, keep in mind the absence of dead bodies: people turned into zombies tend to run off. If their car is running, they'll leave the keys behind -- but the car will continue running until the engine dies or it runs out of petrol (don't cars left idling too long heat up and burn out the engine?). If their car isn't running, they're unlikely to take the keys out of their pockets and leave them on the dashboard before going off to join their new zombie buddies.
But let's say you find matching car and keys, and that the engine isn't shot, and that you can get some gas into the thing. How are your going to reinforce it, if your life skills involve being a bicycle courier or a pharmacist?
But let's say you've done some welding before. Where are you going to do this welding, that the noise and light created by it won't be a big invitation to zombies from around the city?
Last point: any taxi that can do a Monster Truck Rally drive over a traffic jam is plenty reinforced already for my tastes

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Daniel