Perhaps that you forgot it was all dream, and thought it was real.
like "Harold & Kumar Go to White Castle"
Seriously, I know you are older than me and I bet you and I have some good memories of some fast food joints that was founded and buried (Gone) forever. What I am saying is that you MIGHT have thought you went to white castle which could have slightly different name or something different and you mistook them as White Castle. Sometimes this happens to me. I usually enjoying nogislaticing (SP).
For example, I have been eating at Winky's up from Thornburg Bridge. I am afraid 20 years later, I would have been thinking it was Wendy's instead of really it was Winky's.