can your wife file a restraining order on you just by going to the courts & filing a false report
This is the part where you hire an attorney who can defend you at your hearing.
OP's can be granted for up to 2 years, and are public record (In case your employers want to do a background check). If you violate the OP, you will be evaluated to see if you need to be fitted with an ankle bracelet, in addition to the possibility of jail.