Hey Erik
I store my bikes in the garage near my cars, and I haven't had any ill-effects from salt. My Monster is under a breathable cover and on a rearstand. It's pretty well isolated from everything except the cold (though, I may ask Santa for a Modine garage heater >

).
As long as you're not splashing salt water on the bike when you enter/exit the garage with your car, your bike should be OK.
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