Don't Read this in the Passed

This sign is sending two different messages. So, students can't be dropped off. Also, one needs to pass this sign. My questions are WHERE can't students be dropped off?? Anywhere?? Cool! No more school! On the other hand, I have to pass this sign... immediately? When I feel like it?

One mistake on the sign has caused a lot of confusion. This mistake is the word "pass" which should really be "past." "Past" denotes movement so it would work here. However, "pass" implies present tense which is not the right usage here. This can really confuse drivers- which is not a good place to be confused, especially around a school! This sign is supposed to send one message for students not to be dropped off past where the sign is, however the grammatical error might cause people to think otherwise.

Citation:

 "Passed." The Difference between Passed and past (grammar Lesson). Web. 25 June 2015.