No, car's dme will fail out of utter disappointment lol. Seriously it's fine as you said if you don't beat on it when cold. But I would try and do some longer drives to keep the battery in check. I drive 38 miles each way to work. I laugh when people lament the miles they put on their 335's...its a bimmer not a 60s era ferrari. I don't care about the miles. I bought this car to drive it, not to stare at it in my garage.
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear