I used the wheel eraser. 15 minutes job.
Whizzy Wheel Car Decal and Sticker Remover Tool with Drill Adapter Kit, Rapid Decal Eraser Wheel, Pinstripe, Adhesive & Vinyl Decal Remover https://www.amazon.com/dp/B00FJF0O2K/ref=cm_sw_r_cp_api_glt_i_SJ200XNHZ7X4FYQSVPHC?_encoding=UTF8&psc=1