Do you mean like these fellows.

http://www.youtube.com/watch?v=xqQG_MvvPRM

The S-10 respirator may prove handy for any CS gas in the area you may need to drive through.

Actually I just mentioned the ballistic helmet and plates just in case you find your self inside a cross fire outside a Korean Corner Store in LA (forgot the BOB Twinkies) or meeting up with some New Orleans LEOs on Danziger Bridge after some inclement weather.

http://m.video.pbs.org/video/2029672776/

A level IIIa helmet such as the British Mk7 should stop most pistol ammunition with a V50 of 650m/s. (or otherwise think of its use as a general purpose hi spec hard hat).

The Camo net may also make sense for some for some Bug out occasions, especially if having to ditch the vehicle in some woodland to continue on shank's pony or other means. It could be the difference between the vehicle being discovered and stolen or being looted or not.