No. This is not a legal issue. Look for another job.

These are great questions for your lawyer, but not for this general Q&A forum.

This is not a legal issue. Go to another bar.

If you are a party to the agreement you can sue to enforce it. Otherwise, no.

I have no idea if Walgreens sells vibrators.

That depends on school district policy, but I doubt it.

As I mentioned yesterday, you are being out-lawyered. So, lawyer up.

You can hire a PI to investigate the matter, but I think it is likely too late to do anything.

There is really no legal issue here. It is a customer service issue.

Sue for what? To force them to sell to you? You have nothing to sue for.