Clipped a dudes heel with my shopping cart today at Walmart. Was I in the wrong?

Left the checkout area today and some phaggot and his fat coupon wife got out in front of me and took up the whole walk out area. They were walking slow as fuk taking in the Walmart exit area like it was the Vegas strip and I couldn't get around them. After a while I got pissed and was pretty close behind them, I was thinking I should hit his heel with my cart but thought that would be fuked up so I didn't. Well i did end up clipping him right before the exit by accident and he turned and said

"Hey get your cart off my heel, guy"

This dude pissed me off so instead of saying sorry I told him to walk faster and walked past him. As I walked away he said man whatever get a life.

Was I in the wrong or fuk those people?