I don't think 5 squirrels is to many,,, if food is plentiful they are very prolific and you will see more than usual. If they are doing damage than I would certainly cull the herd a bit, but if they aren't causing any damage I would just leave them,,,,, that's the shooting policy I follow on my property.
I eat them, and thoroughly enjoy them, but like the others have said,,,,, if you could find someone who eats them to give to that would be great. If not then they can always be placed out to become a meal for some other meat eating critter such as a raccoon or fox.
Jeff