Supposed to drive from central NJ to Central Park west tomorrow early afternoon. I was just told that the marathon is tomorrow and now I’m freaking out a bit

I haven’t lived in the city for years. Just how bad is driving to from NJ to park Ave at 65th on marathon day? If this adds a significant amount of time to my trip (an hour or more), I’m not going, but I need to decide now. Am I overly concerned about this?