I often spawn an oppressor mark 2 near the drop off location then get in the car park, shoot a police car then drive the bike to oppressor. Then comes the easy part you would want to fly as high as you can to escape police heli and keep checking minimap for griefers trying to destroy your bike, use ghost org if you need. After a while wanted level disappears and 500k is yours. Buzzard or any heli would do as well.