Stutter when accelerating when warm?

I have the vehicle listed above Police Interceptor. A few weeks ago, I took it in for an oil change, it was driving perfectly fine prior. I left the shop and had to stop at a stop light immediately, when the light turned green my vehicle would not accelerate. Then at restart the engine stalled, a technician came out and was able to drive it back in. The check engine light came on, they fiddled with connectors etc, took it for a drive and noticed a stutter/driving hard. The next day an engine technician looked at it, there were no codes and no check engine light. The Mass Air Flow Sensor was not properly connected, they fixed that. Since leaving the shop I notice a lag/stutter when driving. It seems to drive fine when it is cold and before the engine warms up. Once the engine warms up, I can feel the stutter. It is noticeable when I am accelerating above 17MPH or 25MPH seems to vary. It is most noticeable when driving up a steep incline and creates a shuddering sensation. I do have codes for System Too Lean Bank 1 P0171 and Bank 2 P0174 and Catalyst System Efficiency Below Threshold Bank 2 code P0430. Prior to cleaning the MAF code P0420 Catalyst System Efficiency Below Threshold Bank 1. I replaced the MAF, that did not fix the issue. I am taking it to a different shop next week since the first said they couldn't find any problems however they cannot take a look at it until next week. I would appreciate any suggestions. Also, could I be causing more damage by driving to and from work each day?