I've attached remote sensors to two of my kegs in the brew fridge. Even though I have sensors reading the air temp inside, I still like to have these taking readings.
What are you using to control the temp in the kegorator?
Try hitting the keg with some CO2 before filling it up. I clean, and sanitize, mine (plus the beer lines and faucets) with CO2 pushed solutions. Once they're clean, and empty, there's still CO2 in there. I just vent the CO2 via the lid release valve before I connect up to fill (I fill via the liquid post, using a CO2 push from the fermenter). This helps since a blanket of CO2 is over the brew as it fills the kegs.
You might want to get one of the gas QD accessory items that allows you to check the keg CO2 pressure before you hook it up after your 25psi push and rocking. Or try the two week, set and forget, method to see how that works.
I did have a keg over-carbonate before. It's pretty easy to fix though. Just disconnect from the CO2 feed for a few days, and vent the pressure 2-4 times a day. After about three days, connect it back up at serving pressure and see what you've got. I would give it at least a few hours from the last venting time before pouring a pint though. The venting tends to stir up the sediment from the bottom of the keg.