+1 for that Stuey
I have used slight warm water on all my car windows for many, many years and never had a problem. I am however reluctant to use the car wipers (because they cost £ these days). Instead I use a lot of water from a houseplant watering can then a cheapo hand wiper blade (£ shop job).
5 Precepts of Buddhism seem appropriate. Refrain from taking life. Refrain from taking that which is not given. Refrain from misconduct. Refrain from lying. Refrain from intoxicants which lead to loss of mindfulness