Will "over-reporting" my income on my State return have any effect on the processing of either of my returns?

[DawnC0]

It is possible but not likely.  Under-reporting may cause delays in processing.  However, over-reporting generally does not.  They are generally happy to take the money.  Over-reporting can delay processing when a taxpayer claims refundable credits such as:

• Additional Child Tax Credit.
• Earned Income Tax Credit (EITC)
• Health Coverage Tax Credit.
• Small Business Health Care Tax Credit.

If the IRS or state believes you are reporting income to take certain credits or deductions, they will like make inquiries. 

Also, the IRS and state tax departments each maintain their own, separate tax collection systems, so what you report to one is not known by the other.