I bought my husband a park hopper at Disneyland.com and they emailed the voucher but I accidentally deleted it!!!! I think we can go to the ticket window and have them look it up, but can they also do that at the DL hotel since we are staying there?
I feel so stupid for deleting it, now stressing!!
I feel so stupid for deleting it, now stressing!!

You will not have any major problems at the ticket window; just make sure you bring your credit card and if you have any confirmation, bring that. Even if you don't, I think you'll be fine. It took us maybe 15-20 minutes (!) but that was also sometime in the evening when there was no-one there. I reckon that sometimes they might not put their most experienced CMs at the ticket window when the ticket stands are dead, you know?