Sure, but the point of those laws is to diminish the ability for merchants to obscure prices, as a deliberate public policy goal.

Such places are likely to have more proactive regulations against price discrepancies well, rather than common law "freedom".

Still I can imagine a few ways for a store to post prices without being in the territory of forming binding offers - keep stock only accessible to employees, post obnoxious signs everywhere stating that the prices are for informational purposes and that no offer is implied, require membership for entry with appropriate terms, etc.

Or rather than continuing to run the complexity treadmill trying to escape regulation, stores can just accept that they're bound by laws that were settled quite some time ago, and that their business includes making offers to sell items.