In this scenario are you carrying your entire pack or just the survival gear? I know that I don't carry a full pack for day trip fishing but I do carry my small day bag. I would also be dressed in layers for he weather with possibly another light jacket for later in the evening
DAY BAG CONTENTS
1 compass
1 MRE & misc. snacks
2 bandanas
1 pair leather gloves
1 baklava
1 pocket saw
1 esbit stove 4 fuel tablets
1 U.S. canteen and cup
1 AMK bivy bag
1 multi tool
1 led flashlight
1 schrade-folding knife
10 reusable 6" zip ties
12' Para cord
I normally have a heat sheet in the bag too, but when I started to write this I opened it up to make sure I was writing a correct list and found it missing.
I would limit my test to what I would normally carry, since that is all you will realistically have.