I created a thread on here not long ago after I was refused service at a local branch of McDonalds. In response to my complaint, I also received the same reply as posted here about risk to cyclists.
This got me thinking, if they are actively refusing to serve cyclists because of this risk, They are
assuming suggesting liability.
That brings me onto this :
The Red line shows my path if I were to use the Drive Through. The Drive Through is on the left side of the building.
The Blue line shows my path if i were to lock my bike up using the provided bike racks (top left corner)
As you can see, the two paths are not very different and personally, can see less risk in using the Drive Through than undertaking all the cars queuing for the Drive Through, to use the provided cycle racks. Not to mention you then have to cross the road as a pedestrian twice if using the bike racks (as opposed to the Drive Through)
I am yet to reply to McDonalds to see what their response would be in light of this