Your right we are looking for a sim experience in a online league, and like I stated you did nothing wrong. I'm saying that I would not have done it simply because how things turn out when you do something in that manner.
Some players take this way to serious and lose site on certain things. Like the obvious reason why they are losing. Which happened in your case.
I'm sure from this experience you are going to approach it a little differently next time.
Especially when you play him again.
You are in a 3 man league and a problem rose from this. Just a small 3 man league. Now Imagine a league with just 10 players or more. It's a headache on how players claim someone cheese them.
I'm just speaking from experience when playing in a online league. Have a small hand full of simple rules, nothing crazy, and don't do anything outside of the norm.
When I ran a league here is a simple set of rules I had for 4th down and I never received any problems on this scenario because of it.
4TH DOWN RULES
If You have the ball at your opponets 40 yrd line you can go for it at anytime during the game.
Now between the 50 yrd line and your opponents 41 yrd line. You can go for it if it is 1yrd or less anytime during the game.
Now if you are down by 17pts in the game within the 1st 3 qtrs you can go for it anywhere on the field.
At the start of the 4th qtr if you are down by 10pts or more you can go for it on 4th down anywhere on the field.
Now at the 5minute mark of the 4th qtr and only if your losing by any margin you can go for it on 4th down anywhere on the field.
With this layout it pretty much told both players when they can go on 4th down , and when to be aware on defense,so if someone ran a fake punt it wasn't a issue because they did when it was ok to do so and that eliminated all arguments.
Anyway Congrats on your win
. You definitely sound like a sim player, and good luck in your next season.
Take care