Could i have seen a wildcat?

See, yesterday, when i was going to my bus stop, i saw this brown cat. Its fur was shiny dark-gold brown. It struck me as different because the way it was walking i had never seen any other cat walk before. It walked so slowly; i dont know how to explain it but it was weird. It underside was almost touching the ground even though it wasnt bending or leaning downward. I guess it had a tall body. It was bigger than the average housecat but not by much. It looked at me briefly and then walked away behind someone's house. The first thing that came to my mind was mountain lion but, in Jersey? and then its tail was like a u-shaped curve, but it was low to the ground too. Could it have been a wildcat or just a weird breed of domestic cat ive never seen before/you've heard about?