Depends on the precise language, re: the relevant laws in her state (Florida), with which, regrettably, I am wholly unfamiliar.
Here in Washington, doctors, dentists and pharmacists often refuse to share medical information even with a patient's own spouse, without a signed release specifically granting them permission to do so.
If Florida's own laws are in any way similar... then: Walgreen's might as well start writing out the check now, IMH (and completely off-the-cuff) opinion. (Again, however: I'd want considerably more to work with, obviously, before opining more definitely.) :)
"The company Web site says there are 5,122 stores nationwide, with 673 in Florida. The site boasts that Walgreens new computer system for filling prescriptions links all stores into a single network."
Perhaps, since it is a network, they got her prescription mixed up with Howard D's.
Thanks....appreciate it.