A part of me wants to call it sacrilegious, but then I remember how everyone always says "God has a sense of humor". Well, if that's true, then there's NO WAY wouldn't be laughing at that sign.
I respectfully disagree. That particular aspect of Ala.nland has always been one that I have tremendous disdain for, and if I ever were to stop coming to this forum, that would certainly be among the reasons why.
Yeah, as soon as I typed that, I realized it might not be true. OTOH, I do think we religious people can take the little things in life way too seriously sometimes.
Let us lament and not lament its passing.
Is that legally permitted?
Is it legally permitted to be in the left lane when you are and are not passing? 
Yes, it was proclaimed by the Eighth Grand Alan. However, there was no 8th Grand Alan.
Umm. No. It was proclaimed by the 8th Grand Alan. There was no Eighth Grand Alan. This was discussed in quite some detail in Bachrach's seminal history
[1] of the Alans.
The short explanation is that the 7rd Grand Alan was given a manuscript of a text originally written by Cardinal Alan Banastre
[2] in the late 12th Century (13th Alanary), in which was found the following statement:
Septem numere, si au numerele i eget velit congue vandenilis.[3]
Due to dialectical differences
[4] between medieval and modern Alantin, the 7rd Grand Alan misinterpreted the text to be a dogmatic interdict barring the use of ordinal numbers, spelled out in full, for civil titles unless specifically approved by the Council of Alans
[5]. He subsequently issued the Dukes and Alans Edict
[6] (also known as the Alan Dukes Edict), which included an amendment declaring his successor to be known only as the 8th Grand Alan
and not as the Eighth Grand Alan.