well, since you do not have an assigned space and you are not parking in somebody else's parking space, while the owner may attempt to evict, I see no legal reason he would succeed.

btw: they wouldn't evict your tenant. they would evict you and your rights to the apartment. If they were successful, you would then have the problem of how to supply housing to your tenant because your eviction would not terminate your lease with your tenant, unless so specified within your lease with him.

a bit mess.

tell your tenant to make it work.