Criminal Law Questions? Ask a Criminal Lawyer.
Most of the time if you are booked, bail is set. However, when they ask you come in to a booking, as opposed to issuing an arrest warrant, it usually means they are not looking to jail you at that point, and bail is thus usually set very low, or on recognicance.
As for a conflict in charges, the government is entitled to proceed on conflicting charges, and l;et the jury sort it out.