I'm sure I've ridden my 08 without that bolt in. I wouldn't want to go really fast without it though.
You probably can get it out by placing the point of a scribing tool against an edge and tapping counterclockwise with a hammer. I got a bolt out that way. It took a lot of time but it worked. You might need to cut a couple sharp edges in the bolt to set the scribing tool against.
On my 08, the tank fairing bolt has a fairly thick rubber cushion that bolt runs through. If you take the tank fairing off, you might have a quarter inch of threads sticking out and you won't have that deep well to reach down into. Grab the bolt with a vice grips and turn. It can't be too tight if the head is gone. Otherwise, cut a slot in it with a needle file and use a screwdriver. This will be 100 times easier if you remove the tank fairing. On my 08, I'd need to remove all the fairings to take the tank cover off but that would be a lot easier than fussing with elaborate measures to extract that bolt.
BTW, Welcome to the forum.
* Last updated by: Rook on 4/18/2021 @ 11:47 AM *
'08 MIDNIGHT SAPPHIRE BLUE Now Deceased