Post NYC Marathon Meet Up with Fam

I'm running NYC and excited to have friends + fam support me. This is my first marathon & I live in Williamsburg - I'm wondering if maybe we should link up at a bar in Williamsburg post race. What is the city like on race day? Any recs? Will I be too tired to hang? Will it be easy for my family to see me multiple times during the race or should I tell them to post up at just one location?

When I ran the Brooklyn Half this year, there were so many people cell service didn’t work and it was difficult to get everyone together. Curious if anyone has any recs!