Guys if you check, I think you'll find that both your tire and tractor manufacturers approve the use of Calcium Chloride in tubeless tires. In fact my new Kubota comes from the factory that way. Just make sure you fill the tire to 75% so the inside of the wheel is always covered with the liquid.
Calcium Chloride is significantly different than "salt" which is Sodium Chloride. It's far less corrosive and far less damaging to grass etc. For those reasons, it's used extensively for ice removal even though the cost is higher than salt.
Windshield washer fluid usually contains ethanol or methanol. Both attack rubber... I'm not aware of any corrosion inhibitors in WW fluid. the alchohol would do a good job of removing any corrosion inhibitor that might already be on the wheel. Still, it probably won't hurt a thing as it's not very concentrated.
Just a tip, If you garage your tractor or live in the south where it doesn't stay cold long enough to freeze your tires, just fill them with water. It's really easy to adapt an air chuck to a water hose, turn on the faucet and fill'er up! When you don't need the weight, just unscrew the valve core and let it out. Works great. I have some old IHC wheels with water for 15 years. Had CaCl in them for 10 before that. Tubeless of course.