Can temporary car tags travel across different states?

I’ve lived in Florida my entire life, but I haven’t really explored it. I want to take a month off to tour the state on a budget. Can I legally sleep in my car in Florida?

I’m moving to a new apartment across town. Can I bring my current renters insurance with me? If so, how do I change my address on a Progressive renters insurance policy?

I drove over a giant board sitting in the middle of my lane when I got onto the interstate, and I saw it too late and couldn’t slow down. Nothing seemed wrong when I looked under my car later, but now when I’m driving it doesn’t feel right. I think something under my car does need to be repaired. How much would this cost?