Is there any issue with the neutral and ground being connected in this panel?
In residential services only, you can attach grounding conductors and neutral conductors at on the neutral bus, but it must meet certain requirements. First the main breaker in the panel must be the first means of disconnect from the meter (no separate main breaker). Second the neutral bus must be bonded to the Panel (look for the green screw or a lead going to the encasement). 

Any panel after that is considered a sub panel and must have a separate neutral and ground bus.

I will also say that this could change depending on the interpretation of the AHJ. So it's always a good idea to check in with them before proceeding with any argument.

Hope this helps.