Is that normal?
I called up a friend of mine who was a cop in NY state for a time. Apparently for issues relating to stalking (along with domestic violence etc.) it is 'normal' and they should be returned when cleared of wrong doing.
It wasn't a car load of guns. It was three guns.
I was thinking the exact same thing, one CCW, one hold out/backup, and a car gun. As for the "90" rounds, my first thought was "huh, traveling light."
Hell my CCW is 56 rounds (3x18rd mags), counting my backup as well that's already 64 rounds. If I tossed an AR rifle with a single mag into the trunk that would put it squarely in the 90 round ballpark, but I would expect there to be a couple spare mags with said rifle, hence "traveling light."