What should I do about an electrical service panel that is next to the gas service meter?
I would contend that the gas meter was installed in the wrong place.  It clearly was installed long after the house was built and the original electrical panel installed. I would first ask the gas utility to move their mater. I would state that a 'home inspection' found the situation a hazard and are now asking to have the gas meter moved out of safety concerns. In fact, 'my' home owners insurance may become void without reparations.  It doesn't hurt to try.  They certainly have more resources to make this kind of a change than you do; not to mention the fact that they are the ones that put the meter is a hazardous and non-code compliant location. If you wanted to get hard nosed about it, I am  sure you could find a lawyer who would love to help.