Seriously? It is a great feature. Had it in my E90 as well. Because of the inbuilt sensor, I doubt you or I could disable it. Maybe the dealer by changing 'codes' or something similar, but I doubt they would want to disable it.
Give it a little more time. Hopefully you will get used to it. It is very good and responds both ways very quickly.
328i M-Sport, Estoril Blue, Carbon XP 35 Tint, front heated seats, black Dakota, Sports Suspension, Anthracite Headliner, HUD, Pro Nav, Sunroof, hk 600w, Bi-Xenon, 19" 403M wheels, Reversing Camera, DAB+, Xenon, BT Ext Connect. JB4 on Map 2 with Catless DP produces awesome performance in Sport.