I agree with Pete (no, hell will not freeze over).
Once a measurer has a course Certified by USATF, his/her responsibilty ends. From that point on, it's the responsibility of the host organization to identify any changes in the route and request a new measurement/certification.
If the host organziation fails to have the course re-measured/certified it could jeapordize the ratification of any performances as well as it's Sanction.
In my opinion we have gone overboard with having a limit on the Certification - both here in the US as well as internationally where it is 5 years.
The IAAF issues Certificates for tracks with NO expiration date. It does require a new Certification if the track is rebuilt or resurfaces.