Well despite your conviction you can apply to have your Weapons Disability removed under Ohio Revised Code 2923.14. You have to apply to the County Court where you reside. The Statute enumerates what the motion requires. The Court will treat the application as a new Civil Filing. If You have any questions you should consult an attorney in your area.
There are exceptions to those rules you are referencing. Your individual case needs to be evaluated by an attorney so you are aware of your rights. The most important thing is that you do not act on your own and find yourself in jail for another felony.
There are options for relief from disability and expungment depending on your charges.
It depends on the terms of your individual probation. Most likely, the fact that you are on "non-reporting" probation means that the supervision is low level. It would be best to check with the probation department you report to for a full answer.
To arrest you for this crime there must be "probable cause". That could come in the form of video evidence, eye witness evidence or circumstantial evidence. If you get arrested make no statements to the police. Request a lawyer immediately and remain silent until one is provided for you.
Better yet, if you have the means, contact an attorney now and have him/her on retainer until your arrest.