So according to a Union ADR, if mgmt doesn't want any scanned, don't scan. If they only want 5, do as you're instructed. BUT if mgmt changes their mind later, then we can grieve it and have the route adjusted to reflect the change. Document EVERYTHING! Get it in writing what is to be done if mgmt orders not to fully scan on location for pickups. If you get 20 pkgs for pickup, note that on your 4240 for possible later reference when mgmt "changes their mind". Then when they suddenly want ALL pkgs scanned, a grievance can be filed & won! It's the lack of documented proof that screws us when the rules suddenly change.
Just think... if you only do 5 scans per pickup & nothing is in writing, then mgmt later instructs ALL are to be scanned, where is your proof that this wasn't done during count?