Definitely. Also, since others have mentioned cold with no plug as inherently being an issue--if the car is allowed to sleep, and if no preconditioning, the actual loss overnight should not be significant unless it's *really* cold (like below 10F/-12C cold). Certainly agree that *any* plug availability would likely completely resolve OP's issue, though--even if it's not 'charging' the car per se, it's going to ensure the battery doesn't get cold-soaked, and would drastically reduce drain on the battery from preconditioning.
My X is parked inside during the night. It is plugged in when at home. I do not precondition. I also notice that it is using more then 375 Wh/km (is about 600 Wh/M) over the first 5km or more. Calculating with that number. and using the battery from 80% to 20% That means less then 60 kWh. So 60000 Wh divided by 375 Wh/km is a range of 160 km. So 125 km with preconditioning and 60% is less then 60kWh that could be normal. A sales person is not going to tell you that unless specifically asked then maybe. If he understands the matter good enough.