If a dream has a parking lot in it at any point, consider that as a thematic lens through which to view the entire dream; you are in some sort of holding pattern while an issue is being worked out before you can resume your journey in life. [1]
Dreaming of difficulty in locating a parking space implies your inability to find your place. You may still be exploring and discovering your skills or a niche where you are likely to excel. On the other hand, it may suggest business and lack of time to accomplish important tasks. [3]
A dark and scary lot where you fear being mugged is usually a warning type dream and it could actually be a true dream, in as much as it may be telling you to stay away from dark parking lots or take extra care when one must be used. [4]