[SilentSoul]

Let's create a time to stop this animation.

pawn Code:

ApplyAnimation(playerid,"VENDING","VEND_Use",4.1,1 ,1,1,1,1,1); 
SetTimer("stopanims",1000,false);
forward stopanims(playerid);//don't add those lines inside your command , just anywhere else in your script.
public stopanims(playerid)
{
ClearAnimations(playerid);
}