Counterfeiter, Rodeif, Hatra'ah

Kitzur SA 184:9
Based upon Rema Cho"M 388:11

Paraphrasing Goldin Translation

«A person who is engaged in counterfeiting money ... Is a "rodeif" ... And should be warned to desist from his practice [lest he jeopardize the community]»

Q1 : If the counterfeiter is indeed deemed a rodeif, why should he even get hatra'ah? What are the Rema and the Kitzur SA teaching us?

Note: Rema adds "v'im eino mashgi'ach" , so we expect that sometimes the counterfeiter will heed that warning.

Q2: Do we have sources re: Pinchas and Zimri? IOW did Pinchas warn Zimri first?

Shalom,
RRW