I replaced all 4 tires with Michelin Pilot 4S again over the summer. Now I'm thinking I should have gotten the A/S version considering my frequent travel to colder states\places or light snow incidentally. I'm going for a few days to southern Utah in a few weeks where it will be around 42F high\25F low. I'm worried about my tires freezing and cracking while parked outside of the hotel over night in the 25F temperature. I'm thinking of getting bags for plant frost protection and bringing my heavy cotton car cover. Any other ideas as new winter tires make no economic sense?