Welcome to the club Swoop. Your story reminds me of the first trip my wife and I made. We also rented a 30' class A and followed the Weather Channel to see where we would go. We wound up driving from western North Carolina to Memphis. I had driven semis before, so was not overly intimidated by the rv, at first. We wound our way from Asheville down through Hot Springs, NC and on to Newport, TN. We were both a little nervous with the mountains, not overly so. We decided to take the scenic route through Tennessee along US 70. However, we did not know anything about all of the through truss bridges on that route and the semis that haul butt through them. Had a little white knuckle time myself trying not to exchange mirrors with the semis or leave one on the bridge structure while my wife was telling me how great the view was that I was missing. After the second morning, we were on a nice wide interstate on the way to Nashville.
We stayed at a great place in W. Memphis, AR called Tom Sawyers. Loved the river views out the window of the rv. We decided to go down to Tunica, MS and on the way, and decided we would like to see Beale Street one more time. We checked out of the cg and drove the rv down Beale Street getting a lot of looks from the pedestrians and found a parking spot on a side street and got out to look around again. As we were walking away from the rv, a lady on the sidewalk pointed out that the exhaust from the rv was right on top of the concrete curb, I mean touching it. Didn't look to be bent much to me! Oh well, as long as we can get going again, it should slide off of it. No problem. While walking down Beale, looked up and there was a great big sign that said "NO RV's, TRUCKS OR BUSES ALLOWED". I knew I was in the wrong place with an rv, just hoping none of the boys in blue saw me before we made our getaway.
We made it on out of town without incident and found out in Tunica that casinos are really loud with that background buzz. Lost $20 and went back to the rv. We decided to finish our trip with a couple of days in Gatlinburg, TN. We found a campsite and decided that a rental car would be good to get around in since we did not have one at the time. We made arrangements and went to pick it up in the rv. All went well and we went back to the campground. My wife sat in the rental to watch me back into our site. Looking out the mirrors, all looked great until the rv stopped abruptly. Got out and found the tree I had missed with the mirrors, but found handily with the ladder on the back of the rv. I asked her why she didn't warn me I was backing into a tree. She says "I was trying to, but could not find the horn on this dang car". After paying the rv dealer for the damage to the ladder, we saw the very same rv on his lot a year later for sale with duct tape all over the ladder. Still asking the sticker price no less!
All in all, it was an awesome first trip in the rv. Just be careful, three motorhomes later, we can truthfully say that the lifestyle is very addictive. We are now in a 40' diesel pusher and loving it.
Happy trails to you.