Fuel Vent Hose for 2003 Mazda Protege 5
 

So, I live in Northern Michigan and we have had tons of snowfall over the weekend and I got stuck for a hour and a half this morning. While a friend of mind was trying to pull me out, he accidently pulled off what appearst to be the fuel vent hose that is on the driver's back side by the rear tow thingy. Can anyone tell me if this is important or not? It does not seem to have affected anything so far.