If the hole is far enough away from the sidewall, a tire repair shop will apply an inside patch that is a combination patch and plug. You can't safely use a simple plug, you need the combination patch and plug. It looks a little like a mushroom, and is drawn through the tire from the inside to the outside. The tire shop will want to know how far you drove on it with low pressure, and how low it got, to ensure that the tire hasn't been compromised from overheating, before they will repair it.

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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