Hagerstown, MD to Garner, NC

We left Hagerstown at 7:15 and had a nice ride until I started smelling exhaust fumes. It followed us all the way to the front of the RV. We pulled into the Caterpillar dealer in Garner, NC just south of Raleigh for our routine engine servicing, and had them check it out. Turns out we have a hole in the muffler pipe, so they ordered one. They are unable to do all that work for us this week, and sending us to Mebane, NC about 60 miles north west. They said they will be able to take care of the maintenance and exhaust problem on Friday, and hopefully they can because they are closed on the weekend! Our right slide opens, but within minutes closes on it's own. The dealer in CT "fixed it" since before it would pop about an inch while we traveling. Now we have the opposite problem, so that's something we need to attend to ASAP. We feel like it's our "Wally World" vacation!!