I just got a tire puncture and have the run flats but don't have the tire warranty, can these run flats be repaired? Any experiences out there? How much did it cost?

I can see a screw stuck in the tire, haven't removed it yet, should I take it out before driving it to the tire shop or should I leave it in there?

Thanks

__________________
2008 E70 X5 3.0si
Sport | Prem | Adaptive Drive | Tech. | Cold Wthr | Rear Climate | 3rd Row | Running Boards | iPod/USB

2019 G30 530e
Sport | Adaptive | Drv. Assist+ | HK | HOV Access

2018 F83 M4
Comp. | Exec | DCT | First M Car

2009 E93 335i (Sold)
Sport | Prem | 19" 230 | Logic 7 | iPod/USB | Sat | HD Radio | Comfort Access | Heated Seats | Pure Joy

E36 328is GoKart (Sold)
Manual | HK | Trip Comp. | 17" Rims