Cue Stallman. This is precisely the motivation for GNU software. How long before GNU (or other prxoy) has an autonomous driving project? Part of the issue is that the dataset is as important as the software. First step would seem to be the construction of a "GNU" hardware pack for autonomous driving and people start driving around with it mounted on their cars, gathering (GPL'd) data.
Is there any commercial software that lacks an EULA? Not having one would I think expose the company to risks that any for-profit company is incentivized to minimize (i.e. It wouldn't make sense to not have one).