Allegheny County, lie every County has slightly different rules/policies. You need to talk with your Attorney, and formulate a strategy. Should you be dissatisfied with his/her advice then contact another Attorney.
As Robert, has indicated he is facing serious charges, and as such serious incarceration. There are many factors that lead into sentancing. First, he must be convicted or plea guilty. Second, assuming a plea or a finding of guilt, is prior record score. Third, is mitigating and aggravating facts. Finally, is a presentance investigation.
First, I want to agree with above attornies. Secondly, I want to bring to your attention that you will be receiving notice of a license suspension for a refusal, which yo may wish to appeal. Third, this case still may be able to be mitigated, and/or won depending on the officer and the fields.
Are you asking if you will have a say in the result of this case? If so, the case will be handled by the commonwealth, and hey an compel you to testify. However, most ADA's will allow victims to have an input into their decisions for plea offers.
Please feel free to contact me. However, do not post any more informatIon online. You will want to retain a lawyer to find out if you have a warrant. And if so, negotiate your surrender, and bond conditions.