[Shadow0707]

Coordinates mean checkpoint? if yes, check this Here
For Freezing Here
and for timer Here
and for repairing vehicle Here

pawn Code:

Pay(playerid, Cash)
{
      //Change this to what your server uses.
    pInfo[playerid][pCash] = PlayerInfo[playerid][pCash] + Cash;
}

to call it

pawn Code:

//this will deduct cash to player
Pay(playerid, -amount);
//this will give cash to player
Pay(playerid, +amount);