Hello

Beautiful day today and I put on 270 miles driving around the Catskill mountains. One incident though. I suddenly came upon and at 60 mph ran over two pieces of conduit pipe joined together by what looked like a six gang junction box. It was nine or ten feet long and laid completely across my lane. GOD awful noise. The pipe ripped apart at the junction box, half shooting out to the right from under my car and the other half shooting to the left. The only thing that seems to have taken the hit is my mid muffler which now leaks more and makes considerably more noise than it did before. Looks like I will be replacing it sooner than I had hoped. Cold have been a lot worse so I'll take it. The car though seems to vibrate more at idle. Could compression loss at the mid muffler cause a rough idle?