Hi, Paul! Hope the surf treated you well this year when you tried!...
Here's my take on the crowded Lot:
At M. where I spend my Falls (at least since the Cape tanked & B.I. mostly too!)... Even weeknights there are always at least 20- 35 vehicles in the Main Lot(s)... every night!
That said: whenever I roll out of my vehicle/ nap at 2:30 AM on the "right" tide... even though my pet spots are an easy walk away... 90% of the time the exacts spots/ rocks I want to fish are unoccupied... & 75% of the time I'm completely alone!
Just because there are other guys there first... doesn't mean they'll know the "spots within the spots" as you do... & most times you will still get your spot if you park & try!

Esp. in Nov. there... Just my guess?

(Unless you're talking about a B'way mouth?-- then forget the above!)
Otherwise... to get back to the topic of this thread: whales usually mean/ follow Herring... no? About time they arrived if so!