There is no easy answer for this one......

Generally the restrictions that you see in the Boaters Guide that prohibit the use of internal combustion engines are restricted by boating regulation. If this is the case then the only way you would be restricted from using a gas powered auger is if you hung it on the back of a boat and tried to use it as an outboard.

HOWEVER.....if the restriction is based on a town ordinance that prohibits the use of internal combustion engines under noise control, air quality standards or water pollution control (gas spilling in the water...)then you are stuck. You would not be able to use a gas powered auger on those water bodies.

You need to do a little research if you are not sure about the lake or pond you want to fish. If you see that there is a restriction in the Boating Guide then you should contact the town hall and determine if there is a town ordinance in addition to the state regulation that carries the prohibition from just boats to all engines.