I’m sorry to be that person but that is so unrealistic just stay in the car wtf those wo...

Fr LMAO what are the wolves gonna do, open the car door??

1. The rear windscreen of the car was broken. With enough number of coyotes, they would have attacked them inside the car.

2. Chase is terrified of them and would not be able to keep calm if they are around. Remember how he reacted to only the howls of dog at Keith's party? He couldn't even see them but still froze. Here, they were right infront of them and attacking. Eliminating them was the only option to keep him safe.