RESNET's simulated practical exam deadline has been delayed until February 2018, with some caveats for new raters vs. existing raters. RESNET's email on the subject is archived here.
The RNC Program will plan to offer proctoring services in January of 2018 (assuming enforcement of the deadline is not delayed again). This service will be offered at no charge to raters from participating organizations. Communications regarding scheduling will be sent in Q4 of this year.
RESNET has confirmed that the simulation can be proctored at any proctoring center (e.g. - some public libraries), so you'll have many options if you can't attend the proctoring in Raleigh. Questions about RESNET training compliance should be directed to your Provider or RESNET.