Yes readings were WAY higher than normal. Bumping it around did not seem to change much. Going back to when I was using it in the field, I noticed that even testing the same point, I got different readings after turning the power off, and then back on again - EX: was expecting ~87V, was actually getting 175V, turned the power off, then back on again, and it jumped up to 204V. Was testing a 9 volt battery, was getting 45V, then next day was getting 25V.
Meter was issued to me by my workplace, so after notifying them of the issue, they promptly requested me to hand it in and am currently waiting on a replacement unit. Its a fairly large company, and I doubt they will spend any time troubleshooting it themselves, but they didn't want to take any risks with Health & Safety once it was reported as defective. It will likely be replaced with the same make & model - hopefully it will last longer than the 2 or so years that I've had this original.
I did not have a chance to open it to take pictures, my apologies everyone, but a HUGE thank you to everyone assisting me in the matter!