[PowerPC603]

pawn Код:

if(dialogid == DIALOG_CARS)
    {
        if(response)
        {
                if (GetPlayerCash(playerid) >= 10000)
                {
                    GivePlayerCash(playerid, -10000);
                    new playervehicleid = GetPlayerFreeVehicleId(playerid);
                    CreatePlayerVehicle(playerid, playervehicleid, 405, 2172.1597,1391.7802,10.8203, 90.0000, 0, 0, 0);
                    SendClientMessage(playerid, COLOR_GRAD1, "You have bought a Sentinel");
                    VehicleSpawned[playerid] = 1;
                    TextDrawHideForPlayer(playerid, TDEditor_TD[1]);
                    return 1;
                }
                else
                {
                    TextDrawHideForPlayer(playerid, TDEditor_TD[1]);
                    ShowPlayerDialogEx(playerid, 6774, DIALOG_STYLE_LIST, "Choose a car you would like to buy","Bravura\nSentinel","Buy/Preview", "Cancel");
                }
        }
        else
            TextDrawHideForPlayer(playerid, TDEditor_TD[1]);
    }

You forgot to hide the textdraw when the player clicks "No" (response = 0).