As stated, if the filter gels, it's history for most tractors. Once the waxing takes place it like when your sinuses get clogged, but you can't blow the tractor's nose!
It really takes a warm enough garage/ barn whatever to degel the wax so the fuel could flow, but then you still have a clogged filter and all the way through to the injectors.
You have to get it warm, get new winterized, 'cut' fuel in the onboard tank and a new fuel filter(s) before you're ready to roll again. And if it were me I'd not shut her down while outside until you're ready to shut down back at your shed for the day/night. Scooby074 did just show a Raycor heated fuel filter element in another thread the other day- that in my mind would be teh ideal situation, but even an unheated water separating filter would be a better solution then what comes from the factory. Not saying what is factory is bad, just that there are better filtration systems made for gas and diesel engines and Raycor is one of the best out there.
Also, don't drain down your battery to no reserve by cranking for more than 10-15 seconds at a time; it will also cook your starter wiring circuit. The cold weather is especially bad for killing batteries by excessive cranking, which can lead to early failure from running them down to too low a state to properly recover from.
So I'm going to pull the filter today, I think. The manual doesn't give a lot of detail. Any tips or tricks I should know before starting?