Not that I have seen, you normally end up with a separate remote. You usually have an original key installed in a switch taped up under your dash, so that when the starter remote activates, the car starts and your spare key is already there. You use your second key in the ignition.

All of this is usually less than seamless, ie there are often some rough edges in the functionality. See the post above, where SilverE53 is sorting through the options (which alarm to use, etc).

No judging, but just a reminder that running your vehicle at idle with no load is very bad for it. You may have heat by the time you get there, but you are abusing the engine to get it. No judgement, just a comment.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue