That’s a bummer for the oil change service, you should let the manager know what you encountered, it has never happened to me to gat oil dripping after a dealer oil change, I would know because my truck is parked on a clean cement floor in my garage every day.
That does sound like the same PCM update, it’s weird how many CJDR vehicles are manufactured in Canada and US but the warranty and the build options can be so different. Even the website is so different, I tried the build and price option for US customers, I was building a truck and noticed on the engine option, it showed the ecodiesel $4,900 it’s sounds expensive but that’s going from the 3.6 V 6 gas engine, the 5.7 Hemi option was $2500 over the 3.6 V6 gas, so the ecodiesel is only $2400 more than the Hemi, I saw many US people post on this forum and other automotive website saying it would take so many years to pay for the $4900 option, the reality would actually be half that time because the comparison was done between the ecodiesel and the Hemi and the added cost is $2400.
I know for sure, my other truck had the Hemi, I’m saving every time I fuel up, my ecodiesel payed for itself in less than a year, it was a $1400 option because of a promotion in Canada at the time of purchase.