Legally to claim it, you must call the MNR, report a deer strike, they will send you a letter that gives you authority to possess the road kill.(Sort of like a tag). At the same time call the local police, they will or should give you a file number for reporting it that will give proof of an accident should the MNR question it. I've done it a number of times.
Then comes the 10 minute job of dressing it, finding a safe place to hang it, slice, dice, bag and tag it for the freezer. I'm sure one of the "neighbouring" OFNers would give you a hand for a burger or two.