where can i store my luggage for a few hours at Queens Center for a later flight while i do my shopping there

Speak with security. Ask for a supervisor. Explain your situation. Ask for assistance. Wash. rinse. Repeat.

I don't think so

I think your only option is in your vehicle... without them being visible.

You can't and you definitely wouldn't want to

I dont think they do

I am not sure if they have any storage facilities there but maybe U can call their security 2 check.