This was originally made by Castillofor the Famas Freeroam Server, I am Famas, and i felt We should post this for use of all MTA players. It's quite simple.

start the script (duh)
type /afk in chat, Your current ped will be suspended in place and set invincible, if Your in a vehicle, the vehicle will be frozen, and set damage proof. Damaged vehicles will be repaired upon /afk. Type /afk again to come out of AFK mode.

There are still a few bugs, don't go AFK while in the air, releasing AFK will send you strait to Your death, no matter how high in the air You are.

Enjoy. Comments, and other bug notices would be nice.