Hello, trying to plan for a winter road trip from San Francisco to St Louis. Picking up a new addition to our family. While this trip is for pleasure I do need to be there and back in 10 days. When should I go (January, February or March)? Best routes? Want to go the shortes/fastest way the first leg and through the south the second leg. What will the road conditions be like during this time? Sights to see, places to sleep and eat? Pet friendly places would be ideal. Any advice would be grateful. Thank you.