Hey Maddy! Been a while since we've seen you in these parts!
I wouldn't sweat it too much. Salt damage comes from extensive exposure and not keeping it clean after exposure - i.e. letting the salt sit on the vehicle. Go drive it to your hearts content and if your really worried about it, find a touchless wash with an undercarriage spray close to your home and run her through that! I'm like you, I store for the winter and when the spring comes, at least until May or so (after the rains), I keep the undercarriage rinsed fairly regularly. A lot of coin op car washes now even have undercarriage rinse option!
Drive on Z brotha!
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