If they put an inside patch on the tire, which means they dismounted it, then it is good and you can just keep running it.

If they just put a plug in from the outside, without removing the tire from the wheel, that is a questionable repair, and then I would put the spare on instead of continuing to run 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