Driving You Crazy: What are the rules when a first responder wants to pass me when I'm in the express lane?

Bill from Aurora writes, “What’s driving you crazy? I was traveling south of Castle Rock on I-25 in the "toll lane" when a CSP car with lights on was traveling to an incident. I am presuming that the emergency vehicle rule to pull to the right supersedes the toll lane rule for crossing the double white line - correct?  If so, is it then legal to cross back to toll lane, over the double white line after said vehicle passes?”