Hmm well the steering coupler is much much lower down, like above your toes. So even if it was spewing oil like a geyser that would still be too far underneath.
I'm just being cautious because in my mind, seeing oil means that the shop would not refund you the $175 diagnosis because oil is not involved in the steering coupler replacement?
Maybe just wipe it off over time it will stop?
Perhaps the shop decided to lube the column adjuster knob, and used liquid oil instead of grease?
Yes I believe the coupler is lower however, there should be no "oil" in the column. If you search "leaking steering column" YouTube or anywhere on ANY car, there is no such thing! I confirmed with a buddy who is a tech at BMW, that there shouldn't be any oil but only grease in the column.
So I'm going with my first thoughts that some idiot tech used oil and not grease when reassembling the column during the fixing of the coupler and during these hot days the oil collected and ran out. I don't think very highly of my dealership as when taking my car in last year to get ALL the recalls done at once, thinking 1 trip = less chance for them to F-up my car... Wrong! Picked up car, someone hit a curb... lower bumper damage, inner wheel liner hanging out, scuffed up rim. Said they'ed fix it... next pick up wheel liner still hanging out, 2 light scratches across my hood, knuckle dent in the rear qtr panel. Service guy actually told me that the liner is hanging out because my car is lowered, Wait What?

Next pick up... The matte black license plate mount is now grey because the white polish they used on the hood got on it

still can see the dent on the qtr panel and they scratched/cracked the rear lens. New dent/scratch on the trunk lip🤦♂️ Eventually after over a month I pick up my car, looking decent but not great... I pop the trunk to see how they replaced my rear lens and the inner panel was noticeable not on right. Service guy saw my face and said we can fix that! I said F_CK that, I'll do it myself, where are my keys...
Okay... so as of now, I've wiped down the column of any oil and I'll keep an eye on it. Basically just have to watch for another spot on my floor mat. I won't spend $175 on the mere chance that they would admit to one of their idiots using oil instead of grease...😒