Oh my goodness, what a mess!!!! I'd discreetly drive to a local body shop and get their opinion.
If worse comes to worse, I'd put the spoiler back on.....it not too ugly. (Not in my top 5 choices, but it might have to do for you)
'08 M3: AA G2L3, Catless X-Pipe & Sig Series Rear. AP rods. TC Kline EDC Coil Overs. MRF Alum Sub Frame Bushings. TMS Delrin Diff'l Bushings. BFI Motor Mounts. Recaro PP. BMW Perf Steering Wheel. P3 Gauge. PS Overflow Kit. APEX ARC-8 18"x9.5"/10.5". Conti Slicks 275/35F 305/30R. Stoptech Pads/SS Lines. Cantrell Brake Ducts.