Warrants don't "turn into" something different. When a warrant is issued it is either issued for a misdemeanor or a felony offense. It doesn't change.
turn yourself in.
A bench warrant is a warrant for the arrest/apprehension of the person named. It is referred to as a "bench warrant" because the judge presiding over the case in which the individual is involved is the one who issues the warrant.
Yes it can turn into a arrest warrant.
To give up, turn yourself in.
Probably the FBI.
Your plea should be based on whether or not you are guilty, and not on the age of the warrant.
If you have a warrant, the best thing to do is to just turn yourself in. This will keep you from getting in more trouble in the event that you get caught by the police.
A warrant gives the police the right to arrest you at any time - that's what a warrant is. So it does not matter if you do or don't turn yourself in, the police have the right to arrest you if they have a warrant.
Turn yourself in. If the warrant is not still outstanding, walk away.
You have to turn yourself in to the police. There's no other way.
The usual method is to turn yourself in to law enforcement. If you think the warrant is totally bogus, then you need to hire an attorney to fight it, but yu still may have to turn yourself in.