Butler Collision Center

I dropped my truck off at Butler Collision Center on 12/8 because I got rear-ended on 12/3. The right rear passenger side was damaged, and the exhaust and tow hitch needed to be completely replaced. When I brought in my vehicle, it was in perfect mechanical condition. No issues whatsoever. Finally, on February 19, I got my truck back. However, after driving it for 24 hours, I had to return it because of a loud noise. It turns out they forgot to tighten something related to the exhaust, causing the noise. A few days later, the service trailer brake light system, service 4-wheel drive light, ABS light, parking assist light, and check engine light all came on and stayed on. They also replaced my rear bumper with parking sensors. Butler Collision told me to take my vehicle to the dealer. The dealership said I needed a new battery, which they claimed was the reason for all the lights coming on. I bought a new battery, but the lights are still on. I took it back to Butler Collision Center, but they refused to look at it. They said they never took it to a mechanic to install the new exhaust because they thought it was foolproof and could be done by the body shop. They refuse to acknowledge their mistake. They claim that the work they did has a lifetime warranty, but they won't investigate why all these lights are on after working on MY EXHAUST SYSTEM. They are a body shop, not mechanics. I just want my truck back the way it was when I dropped it off. I won't spend another penny on something that I'm sure is related to the exhaust that a body shop worker installed. I've been told that there are sensors that need to be reset when you mess with an exhaust system.