Lowest possible car insurance?

I am going on a trip out of the country for 4 months, and my car will be parked in my parent's driveway with a cover over it the entire time. How can I find the LOWEST possible car insurance for these months? I called Progressive and the guy was a total salesman with me, saying, "Oh you need vandalism... show more I am going on a trip out of the country for 4 months, and my car will be parked in my parent's driveway with a cover over it the entire time. How can I find the LOWEST possible car insurance for these months? I called Progressive and the guy was a total salesman with me, saying, "Oh you need vandalism insurance, oh and you can't have vandalism insurance without collision insurance," so before I knew it, my quote was up to $120 a month. That's barely lower than the insurance I have now! How can I just get the bare minimum, state-required insurance?

I live in Nevada, by the way, if that helps.
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